Centerline CUH-130363 Commercial Dishwasher Instruction Manual

Centerline CUH-130363 Commercial Dishwasher

Product Information

The product is a commercial dishwasher available in two models:
Centerline and Ecoline. The Centerline model comes in two variants – CUH and CUL, while the Ecoline model comes in two variants – EUH and EUL. The product is designed for installation in commercial kitchens for washing dishes and utensils.

The product manual provides detailed information on the installation, operation, and troubleshooting of the dishwasher. The manual includes a machine installation checklist, programming card, operations and error card, operation and cleaning wall chart, wiring diagram, drain hose, water supply hose, small parts pack, machine feet, rubber tubing for machine feet, and band clamp for drain hose. The manual also includes information on properly installing the machine feet, completing electrical hookup, water hookup, drain hookup, and chemical hookups.

Product Usage Instructions

Before using the dishwasher, ensure that the installation checklist has been completed and all necessary components are present.

To install the dishwasher, follow the instructions provided in section 5 of the manual. This includes properly installing the machine feet, completing electrical hookup, water hookup, drain hookup, and chemical hookups. Ensure that the voltage supplied to the machine is correct and that the transformer is connected for proper voltage (CUH & EUH only).

To use the dishwasher, refer to section 6 of the manual. Load dishes and utensils onto the peg rack or combination flat rack and put them into the dishwasher. Add detergent and rinse aid to their respective containers and ensure that the sanitizer chemical level sensor is installed (CUL only). Start the dishwasher by following the instructions provided in section 6.7 of the manual.

If you encounter any issues with the dishwasher, refer to section 10 of the manual for troubleshooting guidance.

Centerline Models

CUH

ML-130363

CUL

ML-130364

Ecoline Models

EUH

ML-130377

EUL

ML-130378

Commercial Dishwasher Installation and Operation Manual

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Installation and Operation Manual

MACHINE INSTALLATION CHECKLIST
Machine Serial Number ____ Machine Contents Verified
o Peg rack o Combination flat rack o Literature pack
Installation and operations manual Programming card Operations and error card Operation and cleaning wall chart Wiring diagram
o Drain hose o Water supply hose o Small parts pack
Machine feet (4x) Rubber tubing for machine feet (see section 5.5) Band clamp for drain hose
o Sanitizer chemical bottle level sensor (CUL only)
Machine feet installed and leveled (see section 5.5) Electrical Hookup Completed (See section 5.6)
o Voltage supplied to machine ___ V / 60 Hz / 1 Ph
o Transformer connected for proper voltage (CUH & EUH only)
(see section 5.6.3)
Water Hookup Completed (See section 5.7) Drain Hookup Completed (See section 5.8)
o Proper building drain available (see section 5.8.2) o Drain hose attached to elbow fitting (see section 5.8.1) o Drain hose free of kinks
Chemical Hookups Completed (See section 6)
o Detergent and rinse aid hoses installed in correct containers
o Sanitizer chemical level sensor installed (CUL only)
(See section 6.3)

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TABLE OF CONTENTS
1 Notes on the documentation …………………………………………………………………………………………….. 7 1.1 Application………………………………………………………………………………………………………………. 7 1.2 Layout of the documentation ……………………………………………………………………………………… 7 1.3 Representative convention ………………………………………………………………………………………… 7 1.3.1 Symbols used ……………………………………………………………………………………………………. 7 1.3.2 Representation in the text …………………………………………………………………………………… 8
2 Safety instructions and regulations …………………………………………………………………………………….. 8 2.1 Safety instructions and warning notices ……………………………………………………………………….. 8 2.1.1 Hazard levels …………………………………………………………………………………………………….. 8 2.1.2 Layout of warning notices……………………………………………………………………………………. 8 2.2 Basic safety instructions …………………………………………………………………………………………….. 8 2.2.1 Product safety …………………………………………………………………………………………………… 8 2.2.2 Personnel qualification ……………………………………………………………………………………….. 9 2.2.3 Product-specific hazards ……………………………………………………………………………………… 9 2.3 Property damage ……………………………………………………………………………………………………… 9
3 Product description ……………………………………………………………………………………………………….. 10 3.1 Intended purpose……………………………………………………………………………………………………. 10 3.2 Designation……………………………………………………………………………………………………………. 10 3.3 Technical specifications……………………………………………………………………………………………. 10
4 Controls (See Operations section 6.7) ……………………………………………………………………………….. 11 5 Installation……………………………………………………………………………………………………………………. 11
5.1 Personnel qualification…………………………………………………………………………………………….. 11 5.2 Special safety instructions ………………………………………………………………………………………… 11 5.3 Transporting to the installation location……………………………………………………………………… 12 5.4 Removing the packaging ………………………………………………………………………………………….. 12 5.5 Installing the machine ……………………………………………………………………………………………… 13 5.6 Connecting to the power supply………………………………………………………………………………… 13
5.6.1 Electrical Data …………………………………………………………………………………………………. 14 5.6.2 Electrical Connection Method…………………………………………………………………………….. 14 5.6.3 Transformer connections (CUH Only)…………………………………………………………………… 16 5.7 Connecting the water………………………………………………………………………………………………. 17 5.7.1 Water Requirements ………………………………………………………………………………………… 17

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5.7.2 Water Connection ……………………………………………………………………………………………. 17 5.8 Connecting the drain……………………………………………………………………………………………….. 18
5.8.1 Attaching drain hose to machine ………………………………………………………………………… 19 5.8.2 Attaching drain hose to building drain …………………………………………………………………. 19 6 Chemical Supply Set Up ………………………………………………………………………………………………….. 20 6.1 Personnel qualification…………………………………………………………………………………………….. 20 6.2 Preparing the chemical supply tubing…………………………………………………………………………. 20 6.3 Preparing sanitizer chemical level sensor (CUL only)……………………………………………………… 21 6.3.1 Attaching the sanitizer chemical level sensor to the sanitizer tubing…………………………. 21 6.3.2 Connecting the sanitizer chemical level sensor control wire to the machine ………………. 21 6.4 Installing optional detergent and rinse aid chemical level sensors …………………………………… 21 6.4.1 Connecting the chemical level sensors to the detergent and rinse aid tubing……………… 21 6.4.2 Connecting the detergent and rinse aid chemical level sensor control wires to the machine 21 6.5 Installing optional sanitizer chemical level sensor (EUL only) ………………………………………….. 22 6.5.1 Connecting the chemical level sensor to the sanitizer tubing …………………………………… 22 6.5.2 Connecting the sanitizer chemical level sensor control wire to the machine ………………. 22 6.6 Setup of external chemical bottles …………………………………………………………………………….. 22 6.6.1 Standard detergent and rinse aid suction tubes …………………………………………………….. 22 6.6.2 Optional detergent and rinse aid chemical level sensors…………………………………………. 22 6.6.3 Standard sanitizer suction tube (EUL only)……………………………………………………………. 23 6.6.4 Preparing the sanitizer (CUL machine only)…………………………………………………………… 23 6.6.5 Optional sanitizer chemical level sensor (EUL only)………………………………………………… 23 6.7 Filling chemical tubing (See Operator Menu for priming ­ section 8.1) …………………………….. 24 7 Operation …………………………………………………………………………………………………………………….. 24 7.1 Personnel qualification…………………………………………………………………………………………….. 24 7.2 Special safety instructions ………………………………………………………………………………………… 24 7.3 Notes for optimal washing result……………………………………………………………………………….. 24 7.4 Preparation for washing …………………………………………………………………………………………… 25 7.4.1 Preparing the machine ……………………………………………………………………………………… 25 7.4.2 Preparing the ware for washing………………………………………………………………………….. 26 7.5 Washing………………………………………………………………………………………………………………… 26 7.5.1 Extending wash time (CUH and CUL only) …………………………………………………………….. 27

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7.6 Switch off machine………………………………………………………………………………………………….. 27 7.7 Daily cleaning or after each meal period……………………………………………………………………… 28 7.8 Weekly cleaning ……………………………………………………………………………………………………… 28 7.9 Removing hard water deposits (Deliming) …………………………………………………………………… 29
7.9.1 Delime notification (CUH and CUL only)……………………………………………………………….. 29 7.9.2 Delime procedure…………………………………………………………………………………………….. 29 8 Settings ……………………………………………………………………………………………………………………….. 31 8.1 Overview of operator menu ……………………………………………………………………………………… 31 8.2 Opening the operator menu……………………………………………………………………………………… 32 8.3 Extended wash time (CUH and CUL only)…………………………………………………………………….. 33 8.4 Cycle count ……………………………………………………………………………………………………………. 34 8.5 Detergent dispensing ………………………………………………………………………………………………. 35 8.5.1 Setting detergent dispensing amount ………………………………………………………………….. 35 8.5.2 Priming detergent dispensing pump ……………………………………………………………………. 35 8.5.3 Inspecting detergent supply ………………………………………………………………………………. 37 8.5.4 Detergent supply level sensor (Optional) ……………………………………………………………… 37 8.6 Rinse aid dispensing ………………………………………………………………………………………………… 37 8.6.1 Setting rinse aid dispensing amount ……………………………………………………………………. 37 8.6.2 Priming rinse aid dispensing pump ……………………………………………………………………… 38 8.6.3 Inspecting rinse aid supply…………………………………………………………………………………. 39 8.6.4 Rinse aid supply level sensor (Optional)……………………………………………………………….. 40 8.7 Sanitizer dispensing (CUL and EUL machine only) …………………………………………………………. 40 8.7.1 Setting sanitizer dispensing amount ……………………………………………………………………. 40 8.7.2 Priming sanitizer dispensing pump ……………………………………………………………………… 41 8.7.3 Inspecting sanitizer supply (CUL only) ………………………………………………………………….. 43 8.7.4 Inspecting sanitizer supply (EUL only) ………………………………………………………………….. 43 8.7.5 Sanitizer supply level sensor (Optional for EUL) …………………………………………………….. 43 8.8 Temperature display units………………………………………………………………………………………… 44 8.9 Aux Channels …………………………………………………………………………………………………………. 44 8.10 Software Version / Machine Program…………………………………………………………………………. 44 9 Display of errors and information …………………………………………………………………………………….. 45 9.1 Error …………………………………………………………………………………………………………………….. 45 9.2 Information……………………………………………………………………………………………………………. 47

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10 Troubleshooting guide ……………………………………………………………………………………………………. 48 10.1 Poor wash results……………………………………………………………………………………………………. 48 10.2 Other faults……………………………………………………………………………………………………………. 49
11 Maintenance ………………………………………………………………………………………………………………… 49 12 Disposal ……………………………………………………………………………………………………………………….. 49 13 Product disclaimer …………………………………………………………………………………………………………. 49 14 Notes…………………………………………………………………………………………………………………………… 50

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NOTES ON THE DOCUMENTATION

1.1 Application
This document contains important information for the installation and startup of the machine by qualified personnel, as well as the information required for day-to-day operation by the operator.
Keep the operating instructions and all referenced documents in a safe and accessible place.

This Installation and Operations manual is subject to change. For the most up to date manual visit www.CenterlineFoodEquipment.com/centerline- resources.

1.2 Layout of the documentation

Referenced documents are all instructions that describe the installation, operation, maintenance, and repair of the device, as well as additional instructions for all accessories used.

For the operator: ­ Operating instructions For the qualified technician (available online): ­ Installation instructions ­ Circuit diagram ­ Spare Parts Catalog

1.3 Representative convention

1.3.1 Symbols used

Symbol

Meaning Warning of hazardous electrical voltage

Beware of hazardous substances

Beware of hazard area

Useful additional information and tips

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1.3.2 Representation in the text

Representation NOTE – ·

Meaning Important information on machine operation, not a warning notice Step Outcome/result Listing 1st level Listing 2nd level

SAFETY INSTRUCTIONS AND REGULATIONS

2.1 Safety instructions and warning notices
During machine operation, observe the general safety instructions and warning notices that precede each action.
2.1.1 Hazard levels
The hazard level is part of the safety instructions and is denoted by the signal word. Potential consequences are differentiated by the choice of signal word.

WARNING NOTICE

potentially hazardous situation: can cause serious physical injury
potentially harmful situation: can cause damage to the product or other objects

2.1.2 Layout of warning notices Warning notices are depicted with warning symbols and signal word in the corresponding safety colors.

WARNING!
Nature and source of the hazard Explanation on the nature and source of the hazard. Measures for averting the hazard Additional measures for averting the hazard, where applicable.

2.2 Basic safety instructions
2.2.1 Product safety
The machine conforms to state-of-the-art technology and the recognized safety regulations. Nonetheless, hazards may occur. Operate the machine only if it is in good working order and in compliance with the operating instructions.

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2.2.2 Personnel qualification Observe the regulations on occupational health and safety. Carefully read through the operation manual before use.

Activity Installation/Setup Work on the electrical system Maintenance, repair

Qualification/training Qualified electrician and plumber Qualified electrician Hobart Service, or by qualified service technician

2.2.3 Product-specific hazards Observe the instructions on the packaging for storage, lifting or transporting.
Avoid electric shock, risk of fire: Do not allow water to flow under live components.
­ Make sure the machine is correctly stored (see frost damage section 2.3). ­ Make sure that the machine does not overflow when being filled. Have the machine connected to the power supply by qualified personnel. Have all maintenance to the machine carried out by qualified personnel.
Avoid chemical burns, irritation of the skin, poisoning: Wear protective equipment (gloves, safety goggles, protective clothing) when handling chemicals. Use only suitable chemicals. Observe the manufacturer’s instructions. Do not open the machine during operation, wait for the cycle to finish. For cleaning, wear protective equipment (gloves, safety goggles, protective clothing) when touching
parts contaminated by detergent.
Avoid burns, scalds: Do not open the machine during operation, wait for the cycle to finish. Otherwise, hot water could
spray out.

2.3 Property damage
Avoid frost damage: Temperatures below 32°F (0°C) lead to functional damage. Before storing below 32°F (0°C), empty residual water in hoses, tank and booster. Prior to restart, store the machine at room temperature (min. 60°F) for 24 hours.

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INSTALLATIONPRODUCT DESCRIPTION

3.1 Intended purpose
The machine is an item of technical equipment intended solely for commercial dishwashing. The machine is designed solely for cleaning ware (porcelain, glass, ceramic, temperature-resistant plastics, stainless steel or similar) from the food industry.

3.2 Designation
The rating label is located on the right side of the machine. If you have any questions regarding service and parts, use the serial number in all communications.

3.3 Technical specifications

Model Dimensions (H x W x D) Water consumption per cycle Hot water connection Voltage Total connected load Fuse/breaker protection Tank capacity Loading height Machine weight

CUH

EUH

32.375 x 22.688 x 24.000 in (822.3 x 576.3 x 609.6 mm)

0.84 gal (3.2 L) 0.91 gal (3.4 L)

110°F (43°C) min. 140°F (60°C) max.

208-240V / 60Hz / 1Ø

CUL

EUL

32.375 x 22.688 x 24.000 in (822.3 x 576.3 x 609.6 mm)

0.84 gal (3.2 L) 0.92 gal (3.5 L)

120°F (49°C) min. 140°F (60°C) max.

120V / 60Hz / 1Ø

24.2 A / 27.5 A

17.5 A

30 A / 30 A

20 A

5.3 gal (20.0 L)

5.3 gal (20.0 L)

15.375 in (390.5 mm)

15.375 in (390.5 mm)

120 lbs. (55 kg)

120 lbs. (55 kg)

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4 CONTROLS (SEE OPERATIONS SECTION 6.7)

2

3

5

4

1

1 Power/Drain Button
2 Start Button
3 Menu Button 4 Delime Button 5 Temperature Display, Wash Tank 6 Temperature Display, Rinse 7 Temperature Units

6

7

Pressing this button switches the machine on, fills and heats the wash tank. Pressing and holding (3 seconds) activates self-cleaning cycle, drains machine, and then switches the machine off automatically. Pressing this button starts the wash cycle. CUH & CUL Only:
If pressed a 2nd time within 10 seconds of the first press, the extended wash cycle is activated. Pressing this button enters the configuration menu.
Pressing and holding this button (3 seconds) initiates the deliming cycle. Displays wash tank temperature while machine is idle or in a wash cycle. Displays rinse temperature only during rinse cycle.
LED lights for °F or °C

INSTALLATION

5.1 Personnel qualification
Installation must only be carried out by qualified personnel.
5.2 Special safety instructions
WARNING!
Risk of electric shock, fire hazard Water (frost damage, machine overflow) flowing over live components can cause injury from electric shock or fire. Do not allow water to flow under live components. Make sure the machine is correctly stored. Make sure that the machine does not overflow when being filled.

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NOTICE!
Frost damage Temperatures below 32°F (0°C) during transport/storage cause function impairments. Prior to installation, store machine at room temperature (min. 60°F) for 24 hours.

5.3 Transporting to the installation location
Where possible transport packed on the pallet.

Use suitable transport means (forklift or hand truck, etc.).
5.4 Removing the packaging
Remove packaging materials and accessories from the machine.
Packaged in machine
· Peg rack · Combination flat rack · Literature pack
Installation and operations manual Programming card Operations and error card Operation and cleaning wall chart Wiring diagram · Drain hose · Water supply hose · Small parts pack Machine feet (4x) Rubber tubing for machine feet Band clamp for drain hose · Sanitizer bottle level sensor (CUL Only)
Immediately after unpacking the dishwasher, check for possible shipping damage. If this machine is found to be damaged, save packaging materials and contact the carrier within 5 days of delivery.

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5.5 Installing the machine
Prior to installation, verify that the electrical supply agrees with the specifications on the machine data label, which is located on the lower, right side of the machine.
Wall clearance is not required.
Install the provided feet in each of the bottom corners of the machine.
The machine must be level to operate properly. Place the dishwasher in its operating location. Level the machine before any connections are made. Using a carpenter’s level placed diagonally on the rack tracks, level the machine front to back and side to side by threading the adjustable feet in or out.
After leveling the machine, cover the exposed threads of the adjustable feet with the supplied rubber tubing.
­ Measure exposed length of threads on adjustable foot (“X”)
­ Cut required length of rubber tubing, slit one side of cut piece and install over threaded portion of adjustable foot.

NOTICE!
Property damage
NOTE: Steam generated from normal operation may escape from the door. Wood, laminates, veneers, etc. are unsuitable materials for use in areas exposed to
dishwasher steam and detergents. Stainless steel or other moisture-resistant shields are recommended for surfaces adjacent to machine sides and top.

5.6 Connecting to the power supply
WARNING!
Risk of electric shock Electrical and grounding connections must comply with the applicable portions of the National Electrical Code and/or other local electrical codes. Disconnect the electrical power to the machine and follow lockout/tagout
procedures.

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5.6.1 Electrical Data Complied in accordance with the National Electrical Code NFPA-70, latest addition.
NOTICE!
Supply connections For supply connections, use copper wire only rated at 90°C minimum. The dish machine is not provided with internal GFCI protection.

Model Volts/Hertz/Phase

Rated Ampacity

CUH

208/60/1

24.2

EUH

240/60/1

27.5

CUL EUL

120/60/1

17.5

Minimum Supply Circuit Conductor
Ampacity 30
30
20

Maximum Protective Device
Ampacity 30
30
20

Refer to the data label on the lower, right side of the machine for proper selection.

5.6.2 Electrical Connection Method
Remove the lower front panel by removing the two screws at the bottom of the panel.

Remove control board bracket and chemical pump bracket nuts.

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Lower control board bracket and chemical pump bracket to allow access to terminal block 1TB.

1TB

A hole for 1″ trade size conduit is supplied at the lower left in the back of the machine.
Install 1″ trade size conduit or cable and fitting. Leave at least four feet of electrical line between wall connection and machine. This allows machine to be pulled away from wall for cleaning and/or servicing.
Make electrical connections according to wiring diagram supplied with the machine and secure wires to the machine service connection. Keep excess wire in the base of the unit to a minimum. A cable support is supplied to facilitate wire routing.

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NOTICE!
208V or 240V electrical connections (CUH and EUH Only) The 208V or 240V electrical connection for the CUH machine requires two hot wires and a ground. There is no current carrying neutral used.

CUH & EUH (208-240V/60Hz/1Ph) 5.6.3 Transformer connections (CUH Only)

CUL & EUL (120V/60Hz/1Ph)

NOTICE!
Transformer connections (CUH and EUH Only)
For the CUH and EUH machines a control transformer is used to step the 208V or 240V incoming power to 120V for the control circuitry and drain pump. The transformer is factory-preset to 240V.

For 208V incoming power, relocate the 1T-H wire on the transformer from the 240V terminal to the 208V terminal (See below for correct setup) ­ Refer to wiring diagram supplied with machine.
Note: Access transformer by tipping machine up and removing bottom panel.

An incorrectly connected transformer can lead to machine draining issues.

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5.7 Connecting the water
NOTE: The machine must be operated with potable water.
5.7.1 Water Requirements
Proper water quality can improve ware washing performance by reducing spotting, enhancing effectiveness of labor and extending equipment life. Water conditions vary from one location to another. The recommended proper water treatment for effective and efficient use of this equipment will also vary depending on the local water conditions. Ask your municipal water supplier for details about your local water conditions prior to installation.
Recommended water hardness is 3 grains of hardness per gallon or less. Higher hardness may cause excessive formation of lime scale. Water hardness above 3 grains per gallon requires water treatment. Water treatment has been shown to reduce costs associated with machine cleaning, reduce deliming of the dishwasher, and reduce detergent usage in the dishwasher.

NOTICE!
Water quality
High iron levels in the water supply can cause staining and may require an iron filter. High chloride levels in the water supply can cause pitting and may require a chloride removal system. Contact Hobart Service or your local water treatment professional for proper water treatment.
Sediment may require a particulate filter. Dissolved solids may require water treatment such as a water softener, reverse osmosis system, etc. Contact Hobart Service or your local water treatment professional for proper water treatment.

5.7.2 Water Connection
A water hammer arrestor (meeting ASSE-1010 Standard or equivalent) should be installed (supplied by others) in the common water supply line at the service connection.
The plumber connecting this machine is responsible for making certain that water lines are THOROUGHLY FLUSHED OUT BEFORE connecting to the dishwasher. This “flush-out” is necessary to remove all foreign matter, such as chips (resulting from cutting or threading of pipes), pipe joint compound from the lines; or, if soldered fittings are used, bits of solder or cuttings from the tubing. Debris, if not removed, may lodge in the dishwasher’s plumbing components and render them inoperative. Solenoid valves fouled by foreign matter and any expenses resulting from this fouling are NOT the responsibility of the manufacturer and associated repair costs are not covered under warranty.
A manual shutoff valve (not supplied) should be installed upstream of the fill hose to accommodate servicing the machine. It is recommended that a line strainer (80 mesh) (not supplied) be installed in the supply line between the manual shutoff valve (not supplied) and the connection point on the machine. Make plumbing connections with ½” minimum copper piping OD (¾” recommended), with a ¾” male garden hose fitting (not supplied).

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Connect to hot water A water supply hose is provided. Temperature:
­ CUH and EUH: 110°F (43°C) minimum ­ CUL and EUL: 120°F (49°C) minimum Water hardness: max. 3 grains Flowing pressure: ­ 15 psi ­ 65 psi (1 bar ­ 4.5 bar) ­ > 65 psi (4.5 bar): Provide pressure regulating valve (not supplied) ­ < 15 psi (1 bar): Improper machine operation may result

NOTICE!
Pressure regulating valve The water pressure regulator must have a relief bypass. Failure to use the proper
type of pressure regulator may result in damage to the unit.
Attach one end of the of the water supply hose (¾” garden hose thread) to the machine fill valve located on the lower, back of the machine.

Fill Valve
Connect the other end of the water supply hose “A” (¾” garden hose thread) to the building shut off valve.

Do not kink or cut the water supply hose. Any required extension must be made using a suitable pressure hose.
5.8 Connecting the drain
A drain hose, 19mm inside diameter, is provided.
WARNING!
Plumbing connections Plumbing connections must comply with applicable sanitary, safety, and plumbing codes.

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5.8.1 Attaching drain hose to machine Attaching drain hose to machine Remove 4 screws holding rear cover panel to machine.

Attach the supplied drain hose to the drain elbow with the supplied hose clamp.
Elbow
Hose clamp Drain hose

Turn elbow to direction needed for drain hose

­ Loosen hose clamp at either the anti-siphon valve or elbow

­ Turn elbow ­ Retighten hose clamps

Anti-Siphon Valve Hose clamp

Replace the rear cover panel

Hose clamp

5.8.2 Attaching drain hose to building drain
Attaching drain hose to building drain
Note that:
­ The connection between machine and site drain must not exceed a maximum height of 34″ above finished floor.
­ Drain must have a minimum flow capacity of 5 gallons per minute. ­ Leave at least four feet of drain hose between wall connection and machine. This allows
machine to be pulled away from wall for cleaning and/or servicing.
­ A pumped drain air gap kit is available using accessory code PUMPDRN-AIRGAP or service kit part number 00-562492. Refer to installation instructions included with kit.
­ Use care not to kink the drain hose.

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NOTICE!
Drain connection An improper drain connection or a kinked hose could result in reduced machine performance and errors. An air gap connection is the preferred connection method.

Incorrect

Acceptable

Preferred (Meets Code Requirements)

CHEMICAL SUPPLY SET UP

6.1 Personnel qualification
Set up must only be carried out by qualified personnel (see section 2.2.2).
6.2 Preparing the chemical supply tubing
Preparing the chemical supply tubing: Locate the chemical tubing attached to the rear of the machine.

Remove the nylon quick-tie holding the chemical tubing to the rear of the machine.

Separate the tubing corresponding to the chemical labels:
The clear tubing with the attached filter and yellow detergent label corresponds to Detergent
The blue tubing with the attached filter and blue rinse agent label corresponds to Rinse Aid
The clear tubing with either the cut end (CUL only) or the attached filter (EUL only) without a label corresponds to Sanitizer

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6.3 Preparing sanitizer chemical level sensor (CUL only)
6.3.1 Attaching the sanitizer chemical level sensor to the sanitizer tubing
Locate the sanitizer chemical level sensor that was packaged with the CUL machine.
Note: The sanitizer chemical level sensor will have a blue stopper and blue sensor wire.
Push the clear sanitizer tubing all the way onto the stem end of the sanitizer chemical level sensor.

6.3.2 Connecting the sanitizer chemical level sensor control wire to the machine Locate the chemical level sensor electrical
connectors plugs on the back of the machine. D = Detergent sensor electrical connection R = Rinse Aid sensor electrical connection S = Sanitizer sensor electrical connection Remove the electrical jumper plug from the Sanitizer sensor connection

Attach the electrical plug from the sanitizer chemical level sensor

6.4 Installing optional detergent and rinse aid chemical level sensors
6.4.1 Connecting the chemical level sensors to the detergent and rinse aid tubing Refer to instructions supplied with the chemical level sensor accessory kit.
6.4.2 Connecting the detergent and rinse aid chemical level sensor control wires to the machine Refer to instructions supplied with the chemical level sensor accessory kit.

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6.5 Installing optional sanitizer chemical level sensor (EUL only)
6.5.1 Connecting the chemical level sensor to the sanitizer tubing Refer to instructions supplied with the chemical level sensor accessory kit.
6.5.2 Connecting the sanitizer chemical level sensor control wire to the machine Refer to instructions supplied with the chemical level sensor accessory kit.

6.6 Setup of external chemical bottles
NOTE: The suction height of the detergent, rinse aid, and sanitizer pumps: max. 5 ft

6.6.1 Standard detergent and rinse aid suction tubes
Standard suction tubes Place clear suction tubing marked for detergent at the bottom of the
external detergent bottle/bucket. Place blue suction tubing marked for rinse aid at the bottom of the
external rinse aid bottle/bucket.

6.6.2 Optional detergent and rinse aid chemical level sensors
Optional detergent and rinse aid chemical level sensors
If the machine has installed the optional detergent and rinse aid chemical level sensing wands (see section 6.4) then:
Place the chemical level sensing wand into the external bottle or bucket so that the float end of the sensor touches the bottom of the container. The detergent chemical level sensor will have clear tubing attached to it. The rinse aid chemical level sensor will have blue tubing attached to it.
Adjust the stopper on the chemical level sensing wands to seal to the bottle or bucket.
Make sure the chemical level sensing wand is correctly inserted into the container with the float sensor at bottom of the container.

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6.6.3 Standard sanitizer suction tube (EUL only)
Standard suction tube Place clear suction tubing with no label at the bottom of the external sanitizer
bottle/bucket.

6.6.4 Preparing the sanitizer (CUL machine only) Preparing the sanitizer Suction height of sanitizer pump: max. 5 ft Place the sanitizer chemical level sensing wand into the external bottle
or bucket so that the float end of the sensor touches the bottom of the container. The wand will have a blue stopper and electrical wire.
Adjust the stopper on the sanitizer chemical level sensing wand to seal to the bottle or bucket.
Make sure the sanitizer chemical level sensing wand is correctly inserted into the container with the float sensor at the bottom of the container.
6.6.5 Optional sanitizer chemical level sensor (EUL only) Optional sanitizer chemical level sensor
If the machine has installed the optional sanitizer chemical level sensing wand (see section 6.5) then: Place the sanitizer chemical level sensing wand into the external bottle
or bucket so that the float end of the sensor touches the bottom of the container. The wand will have a blue stopper and electrical wire.
Adjust the stopper on the sanitizer chemical level sensing wands to seal to the bottle or bucket.
Make sure the sanitizer chemical level sensing wand is correctly inserted into the container with the float sensor at bottom of the container.

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6.7 Filling chemical tubing (See Operator Menu for priming ­ section 8.1)SETTINGS
WARNING!
Chemical burns, irritation of the skin Filling the chemical tubing with detergent, rinse aid or sanitizer for the first time incorrectly can cause serious injury. Wear protective equipment (gloves, safety goggles, protective clothing) when
handling chemicals. Observe the manufacturer’s application and safety instructions.

OPERATION

7.1 Personnel qualification
The machine must be operated by qualified personnel.

7.2 Special safety instructions
WARNING! Chemical burns, irritation of the skin, scalding
If the door is opened during operation, wash water can spray out and cause injury. Do not open the door during operation, wait for the cycle to finish.

7.3 Notes for optimal washing result
The rinse result is significantly affected by the water quality. If the mineral content is high, the minerals dissolved become visible on the glasses in the form of spots and streaks during the drying process.
A HOBART trained service technician can determine the water’s mineral content by measuring the grains. Recommended water hardness is 3 grains of hardness per gallon or less. Higher hardness may cause excessive formation of lime scale. Water hardness above 3 grains per gallon requires water treatment.
If you have any questions, please contact your authorized HOBART service partner.

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7.4 Preparation for washing
7.4.1 Preparing the machine Check correct position of pump strainer and tank strainers and proper installation of upper and
lower wash/rinse arms.

Open building water shut-off valve.

Turn on main switch, breaker, or insert the plug.
Check level of detergent and rinse aid in containers (See sections 8.5.3 and 8.6.3).

For CUL machine, check level of sanitizer in container (See section 8.7.3).

For EUL machine, check that there is sanitizer present (See section 8.7.4). Close door.

Press the Power/Drain button.

During the filling and heating processes, the Power/Drain button LED flashes. This process can
take several minutes.
As soon as the LED is permanently lit on both the Power/Drain button LED and the Start button
LED, the machine is ready for operation.

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7.4.2 Preparing the ware for washing Remove heavy food residue.
Load ware into rack.

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Rinse off ware.

7.5 Washing
Open door. Slide rack into the machine and close the door.
Press the Start button.

While the washing cycle is running, the Start button LED flashes. As soon as the Start button LED lights up permanently, the rinsing process is complete, and cycle ends.
The wash temperature is shown in the upper display for the entire cycle. The rinse temperature is shown on the lower display only during the rinsing portion of the cycle. Open the door and remove the rack. Allow the ware enough time to dry.

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7.5.1 Extending wash time (CUH and CUL only)
For heavier soiled ware, the wash cycle time can be extended by up to 4 minutes. (See section 8.3)
To extend the washing time, start a normal 2-minute washing cycle by pressing the Start button and within the first 10 seconds of the cycle starting, press the Start button a 2nd time.

While the extended washing cycle is running, both the Start button LED and the Menu button LED flashes. As soon as the Start button LED lights up permanently, the rinsing process is complete, and cycle ends.
7.6 Switch off machine
Press and hold the Power/Drain button (3 seconds).

During draining, the display will show “drA in”. During draining, the Power/Drain button LED flashes.
During draining, the machine interior is rinsed automatically, and the tank and booster are emptied. At the end of the draining cycle, the machine switches off automatically.
When the machine has switched off: Remove any heavy food residues. Turn off main switch, breaker, or remove the plug. Close building water shut-off valve.

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7.7 Daily cleaning or after each meal period
NOTICE!
Property damage The use of unsuitable agents can cause corrosion damage. Do not use any bleach, acids, or metal-containing additives to clean the machine. Do not use metal brushes.

Open the door, remove tank, and pump strainers. Rinse under running water. Make sure that food debris does not enter pump intake when the pump strainer is removed.

Clean machine interior.

Replace pump and tank strainers.

Allow time for interior to dry.

7.8 Weekly cleaning
Depress two buttons on side of lower wash/rinse arm. Remove and clean wash/rinse arm. Repeat for upper arm. Replace all parts.

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7.9 Removing hard water deposits (Deliming)
The dishwasher should be delimed on a regular basis as required. How often depends on the mineral content of the water. Deliming should be done when you can see clear signs of lime deposits (a white chalky substance) on the inside walls, on the wash and rinse arms or tank heater. Inspect the machine interior for lime deposits. When deliming is necessary, a deliming agent (such as Lime-A-Way® or LSR®) should be used for best results.

WARNING!
Chemical mixing
Deliming solution must not come in contact with bleach or rinse solution containing bleach. Mixing may cause hazardous gas to form. This entire procedure must be followed step-by-step for safe and satisfactory results.

7.9.1 Delime notification (CUH and CUL only)
The CUH and CUL machines are equipped with an automatic delime cycle reminder. It is recommended that deliming be done when the Delime button LED is flashing. Deliming can also be initiated at any other time if deemed necessary.
7.9.2 Delime procedure Machine must be on and at a ready state (Power/Drain button LED lit permanently). Open the door, remove tank strainers. Rinse under running water.

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Press and hold the Delime button (minimum 3 seconds).

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The upper display will show “SdL” to show that the delime cycle has started. The machine will enter a drain and rinse phase. During this phase the delime button LED will be
lit continuously.
The deliming cycle is extensive and can take 30 minutes or more to complete. When ready to add deliming agent, the upper display will show “Add”. The delime button LED
will flash.
Open the door.
Add the correct amount of deliming agent to the tank according to the manufacturer’s instructions (Refer to section 3.3 for tank volume).
WARNING!
Chemical burns, irritation of the skin. The use of unsuitable chemicals can cause injury. Use only commercial deliming agent. Observe the manufacturer’s application and safety instructions.

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Close the door. The deliming process will continue. The delime button LED will be lit continuously. The upper display will show “dL”.

When the deliming phase completes, the machine will enter a drain and rinse phase. During this phase the delime button LED will be lit continuously.
After the deliming process is completed, the machine will drain and shut down.

SETTINGS

8.1 Overview of operator menu
CUH / EUH (High Temperature Sanitizing Machine)

Item Menu Function 00 Extended Wash Time (CUH only) 01 Cycle Count (Rinse) 02 Detergent Setpoint 03 Detergent Pump Prime 04 Rinse Aid Setpoint 05 Rinse Aid Pump Prime 08 Temperature Units 09 Aux Channel 10 Aux Channel 11 Aux Channel 12 Software

Function Sets extended wash time Displays number of wash/rinse cycles completed Setting of detergent concentration (g/l) Primes detergent pump Setting of rinse aid concentration (g/l) Primes rinse aid pump Sets temperature display to °F or °C Internal functions Internal functions Internal functions Software version / Machine type

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CUL / EUL (Chemical Sanitizing Machine)
Item Menu Function 00 Extended Wash Time (CUL only) 01 Cycle Count (Rinse) 02 Detergent Setpoint 03 Detergent Pump Prime 04 Rinse Aid Setpoint 05 Rinse Aid Pump Prime 06 Sanitizer Setpoint 07 Sanitizer Pump Prime 08 Temperature Units 09 Aux Channel 10 Aux Channel 11 Aux Channel 12 Software

Function Sets extended wash time Displays number of wash/rinse cycles completed Setting of detergent concentration (g/l) Primes detergent pump Setting of rinse aid concentration (g/l) Primes rinse aid pump Setting of sanitizer concentration (ppm) Primes sanitizer pump Sets temperature display to °F or °C Internal functions Internal functions Internal functions Software version / Machine type

8.2 Opening the operator menu
Note: Machine must be in ready (idle) state. Press the Menu button to access operator program settings.

The menu opens, and the Menu button LED illuminates. The upper display will show the first item “00”. To scroll from one item to the next, press the Wash button. After the last item, the sequence will return to the first item.
00 01 02 … 12

To save and exit the operator menu at any time, open the machine door and then close it.

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8.3 Extended wash time (CUH and CUL only)
Top display shows “00”

Press the Menu button to edit settings Bottom display shows current extended wash setting (in minutes): (default = 4)

Extended Wash setting can be set from 3 minutes to 6 minutes total wash time in 1-minute intervals. To increase time, press the Menu button To decrease time, press the Delime button

To save and exit the edit mode, either: Press Start Button to move to next item
­ Or ­ Open and close door (Will also exit operator menu)

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8.4 Cycle count
Top display shows “01”

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Press the Menu button to display the cycle count Bottom display shows first 3 digits of the 6-digit cycle count number (ex. 012345)

Press the Menu button a 2nd time Bottom display shows last 3 digits of the 6-digit cycle count number (ex. 012345)

To exit the cycle count menu, either: Press Start Button to move to next item
­ Or ­ Open and close door (Will also exit operator menu)

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8.5 Detergent dispensing
8.5.1 Setting detergent dispensing amount Top display shows “02”
Bottom display shows current detergent dispensing settings in g/L: (default = 2.0 g/L) Note: 1.0 g/L 0.1 % concentration (by vol.)

Detergent dispensing amount can be set from 0.0 g/L to 9.5 g/L in 0.5 g/L increments. To increase dosage by 0.5 g/L, press the Menu button To decrease dosage by 0.5 g/L, press the Delime button

To save and exit, either: Press Start Button to move to next item
­ Or ­
Open and close door (Will also exit operator menu) 8.5.2 Priming detergent dispensing pump Top display shows “03”
Bottom display shows “0”

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Press the Menu button to change bottom display value to “1”

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Press delime button to begin detergent dispensing pump priming The detergent dispensing pump will activate for 60 seconds The decimal point in the bottom display will flash while the dispensing pump is on

Verify the detergent is moving from the detergent bottle or container to the machine through the tubing and that there are no air bubbles in the tubing.

Note: The priming process might need to be repeated at least 2 times to fully prime the machine.
To exit the priming menu, either: Press Start Button to move to next item
­ Or ­ Open and close door (Will also exit operator menu and stop priming)

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8.5.3 Inspecting detergent supply Inspect detergent container for chemical present.

Verify that the supply tube is correctly inserted with the suction filter at the bottom of the container.
If air bubbles (large gaps) are present in detergent line ­ prime (refer to 8.5.2)

8.5.4 Detergent supply level sensor (Optional) Inspect detergent container for chemical present.
Make sure the bottle level sensor is correctly inserted into container with float sensor at bottom of container. If air bubbles (large gaps) are present in detergent line ­ prime (refer to 8.5.2)
8.6 Rinse aid dispensing
8.6.1 Setting rinse aid dispensing amount Top display shows “04”
Bottom display shows current rinse aid dispensing settings in g/L: (default = 0.6 g/L) Note: 0.1 g/L 0.33 mL/cycle

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Rinse aid dispensing amount can be set from 0.0 g/L to 2.0 g/L in 0.1 g/L increments. To increase dosage by 0.1 g/L, press the Menu button To decrease dosage by 0.1 g/L, press the Delime button

To save and exit, either: Press Start Button to move to next item
­ Or ­
Open and close door (Will also exit operator menu)
8.6.2 Priming rinse aid dispensing pump Top display shows “05”
Bottom display shows “0”

Press the Menu button to change bottom display value to “1”

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Press delime button to begin rinse aid dispensing pump priming The rinse aid dispensing pump will activate for 120 seconds The decimal point in the bottom display will flash while the dispensing pump is on

Verify the rinse aid is moving from the detergent bottle or container to the machine through the tubing and that there are no air bubbles in the tubing.
Note: The priming process might need to be repeated at least 2 times to fully prime the machine. To exit the priming menu, either: Press Start Button to move to next item
­ Or ­ Open and close door (Will also exit operator menu and stop priming)
8.6.3 Inspecting rinse aid supply Inspect rinse aid container for chemical present. Verify that the supply tube is correctly inserted with the suction filter at the bottom
of the container. If air bubbles (large gaps) are present in rinse aid line ­ prime (refer to 8.6.2)

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8.6.4 Rinse aid supply level sensor (Optional)
Inspect rinse aid container for chemical present.
Make sure the bottle level sensor is correctly inserted into container with float sensor at bottom of container.
If air bubbles (large gaps) are present in rinse aid line ­ prime (refer to 8.6.2)

8.7 Sanitizer dispensing (CUL and EUL machine only)
8.7.1 Setting sanitizer dispensing amount Top display shows “06”
Bottom display shows current sanitizer dispensing setting in % concentration: (default = 50%)

Sanitizer concentration dispensing amount can be set from 20% to 100% in 10% increments.

% Concentration
20 30 40 50 60 70 80 90 100

Sanitizer Dosing Setting

Sodium Hypochlorite Solution (Bleach)

5.25%

6.40%

8.40%

Sanitizer Concentration PPM

15

18

24

22

27

36

30

37

48

37

46

60

45

55

72

52

64

84

60

73

96

67

82

108

75

91

120

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To increase dosage, press the Menu button To decrease dosage, press the Delime button

To save and exit, either: Press Start Button to move to next item
­ Or ­
Open and close door (Will also exit operator menu)
8.7.2 Priming sanitizer dispensing pump
WARNING!
Chemical mixing Deliming solution must not come in contact with bleach. Mixing may cause hazardous gas to form. Do not prime sanitizer pump while in the delime process.
Top display shows “07” Bottom display shows “0”

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Press the Menu button to change bottom display value to “1”

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Press delime button to begin sanitizer dispensing pump priming The sanitizer dispensing pump will activate for 140 seconds The decimal point in the bottom display will flash while the dispensing pump is on

CUL machine
Verify the sanitizer is moving from the sanitizer bottle or container to the machine through the tubing and that there are no air bubbles in the tubing.

Note: The priming process might need to be repeated at least 2 times to fully prime the machine.
EUL machine Verify the sanitizer is moving from the sanitizer bottle or
container to the machine through the tubing and that there are no air bubbles in the tubing. When the ball in the sanitizer float sight has moved above
the “EMPTY” line, the sanitizer has been fully primed and is ready. Note: The priming process might need to be repeated at least 2 times to fully prime the machine.

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To exit the priming menu, either: Press Start Button to move to next item

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­ Or ­

Open and close door (Will also exit operator menu and stop priming)

8.7.3 Inspecting sanitizer supply (CUL only) Inspect sanitizer bottle for chemical present.
8.7.4 Inspecting sanitizer supply (EUL only) Verify that the ball in the sanitizer float sight is above the
“EMPTY” line. If the ball is below the “EMPTY” line, inspect the sanitizer
container for chemical present. Prime the sanitizer line if needed (refer to 8.7.2)
Verify that the supply tube is correctly inserted with the suction filter at the bottom of the container. If air bubbles (large gaps) are present in sanitizer line ­ prime (refer to 8.7.2)

8.7.5 Sanitizer supply level sensor (Optional for EUL)
Make sure the bottle level sensor is correctly inserted into bottle with float sensor at bottom of container.
If air bubbles (large gaps) are present in the sanitizer line ­ prime (refer to 8.7.2)

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8.8 Temperature display units
Top display shows “08” Bottom display shows current temperature units: (Default is “F”)

Press the Menu button or the Delime button to change bottom display to “F” (°F) or “C” (°C)

To exit the temperature units display menu, either: Press Start Button to move to next item

­ Or ­

Open and close door (Will also exit operator menu)

8.9 Aux Channels
­ Reserved for Internal Functions ­

8.10 Software Version / Machine Program

Display shows the current control software version.

Top display shows major version

Bottom displays minor revision

Major Version

Example: Software version 3.5

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Press and hold the Menu button or the Delime button to display the machine program

Example: Machine program 4

To exit the software version menu, either: Press Start Button to move to next item
­ Or ­
Open and close door (Will also exit operator menu)

DISPLAY OF ERRORS AND INFORMATION

9.1 Error
“Err” appears in the top display.

The error code is shown in the bottom display (see table). *If error code persists, contact Hobart Service 1-888-4HOBART

Error code

Symptom

Booster Temperature 01
Temperature above upper limit

02 Booster Temperature Temperature below lower limit
Rinse Assurance 03 Booster did not meet temperature or
water level requirements

Possible Solution*
1. Press the power button to power off (Provide 20 min to cool off). 2. Restart as normal. 3. If error continues to display, possible high limit trip or heating
element malfunction ­ contact Hobart Service. 1. Press the power button to power off. 2. Restart as normal. 3. If error continues to display, possible high limit trip or heating
element malfunction ­ contact Hobart Service. 1. When booster does not reach temperature or water level set
point, a long wash cycle of 10 to 20 minutes will trigger. 2. If error continues to display on next cycle, possible high limit trip or
heating element malfunction ­ contact Hobart Service.

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Error code

Symptom

Wash Tank Temperature 05
Temperature above upper limit

Wash Tank Temperature 06
Temperature below lower limit
Booster Pressure Level Sensor 07
Voltage above upper limit Booster Pressure Level Sensor 08 Voltage below lower limit Wash Tank Pressure Level Sensor 09 Voltage above upper limit Wash Tank Pressure Level Sensor 10 Voltage below lower limit
Drain Overflow Limit 12
Wash tank water level exceeded limit

13 Wash Tank Fill Time Exceeded

14 Drain Error ­ Shutdown Machine took too long to drain

18 Fill Error ­ Booster Booster took too long to fill

19 Chemical Deficiency Detergent / Rinse Aid / Sanitizer
do Program Interrupted or Fill, wash, or delime cycle
22 Low Rinse Temperature

Possible Solution*
1. Press the power button to power off (Provide 20 min to cool off). 2. Restart as normal. 3. If error continues to display, possible high limit trip or heating
element malfunction ­ contact Hobart Service. 1. Press the power button to power off. 2. Restart as normal. 3. If error continues to display, possible high limit trip or heating
element malfunction ­ contact Hobart Service.
1. Press the power button off then on to start the draining process. 2. Drain tank and refill (should reset the pressure level sensors). 3. If error continues to display ­ contact Hobart Service.
1. Verify drain hose is not pinched or kinked. 2. Verify pump strainer is not clogged. 3. If error continues to display, possible drain pump malfunction ­
contact Hobart Service. 1. Cycle power button off and then on to continue filling. 2. Check wash and rinse arms for clogged nozzles. 3. If error continues to display ­ contact Hobart Service. 1. Verify drain hose is not pinched, kinked or incorrect drain
connection to building drain. 2. Check drain hose for any debris and drain again. 3. If error continue to display ­ contact Hobart Service. 1. Verify supply hose is not pinched or kinked. 2. Check that water is being supplied to machine. 3. Error will clear once water fills booster to setpoint within set time. 4. If error continues to display, possible fill valve malfunction ­
contact Hobart Service. 1. Low or no chemicals. 2. Float level on bottle level sensor below working condition. 3. If no bottle level sensor present, jumpers are missing from
chemical level sensor connectors. 1. Machine is in fill,  ash or delime cycle. 2. Verify door is closed. 3. If cycle running, then there is a display updating delay.
1. Rinse temperature below setpoint on 3 consecutive cycles. 2. Error will clear if rinse temperature meets or exceeds setpoint. 3. If error continues to display ­ contact Hobart Service

24 USB Drive Not Detected

1. USB not properly configured or incorrect directory path. 2. Contact Hobart Service.

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Error code

Symptom

25 Communication Error

FIL

Low Water Level at Start of Wash Cycle

30

Booster Heat Up Time Exceeded at Startup

31 Fill Error

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Possible Solution*
1. Internal communication error 2. Contact Hobart Service.
1. Check if item(s) from previous wash cycle removed large amount of water from dishwasher.
2. Check orientation of ware to ensure water is not collected. 3. Will automatically correct after starting of the next cycle. 4. Wash tank will fill to proper level and heat to temperature and
then wash cycle will resume. 1. Press the power button to power off and drain tank. 2. Restart as normal. 3. If error continue to display, unplug the machine from the wall. If
unit is hardwired, turn circuit breaker off then back on. 4. If error continues to display, possible tripped high limit or heating
element malfunction ­ contact Hobart Service. 1. System exceeded maximum fill time. 2. Press the power button to power off machine. 3. Verify supply hose is not pinched or kinked. 4. Check that water is being supplied to machine. 5. Restart as normal. 6. If error continues to display, possible fill valve malfunction ­
contact Hobart Service.

9.2 Information
The following notes are displayed with a combination of letters in the display in the display.

Display
do or

Reason
Filling, washing draining or delime program interrupted

Remedy Close door

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DISPOSATROUBLESHOOTING GUIDE

10.1 Poor wash results

Fault Type
Ware not clean
Ware or glasses dry poorly
Streaks and spots on ware or glasses

Possible Cause

Remedy

Wash arm hard to turn (must rotate easily by hand).

· Remove wash arms and clean them thoroughly.
· Also check that water manifold from machine to wash arm is clear.

Wash arm nozzles are clogged (visual check).

· Remove wash arm and rinse wash arm thoroughly until all soiling is removed.

Rinse nozzles clogged (usually by lime deposit).

· Remove rinse arms and delime them in separate container.
· Check building softening system for function.
· Delime machine if needed.

Detergent concentration is too low or too high. Check detergent concentration setting (See operating instructions.

Tank strainers clogged.

Remove right, left and center strainer pans, empty and clean strainers.

Pump strainer clogged.

Remove, empty and clean strainer.

Wrong program selected for heavily soiled wash ware.

Extend the wash program for longer wash cycle.

Rinse aid concentration too low.

Increase concentration (see operating instructions).

Wash ware still greasy.

Detergent concentration too low: increase (see operation instructions). Check if detergent is appropriate. If not, choose a stronger one. Drain contaminated water and refill machine. Ensure better pre-scrapping of the wash ware.

Wash ware left in machine too long after the end of wash cycle.

Remove wash ware as soon as cycle is completed when ware is at its highest temperature to enable better drying.

Rinse aid concentration too high (stripe or bubble formation).

Reduce rinse aid concentration (see operating instructions).

Hard water or high mineral content.

Check water quality.

Improper rinse aid

Consult your local chemical provider

Inadequate rinse aid dispensing causes stains. Increase rinse aid concentration (see operating instructions).

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10.2 Other faults

Fault Type Glasses are totally or partially cloudy.
Glass/dish breakage.

Possible Causes Surface of glasses is rough and porous; this is called glass etching.
Use of unsuitable dish or glass racks.

Remedy Use new glasses, this is not caused by a malfunction on the machine.
Use suitable racks.

11 MAINTENANCE
Genuine spare parts must be used for repairs and maintenance part replacements. Maintenance parts include chemical dispensing tubes, rinse arm bearings, etc.
Contact your Hobart Service office for any repairs or adjustments needed on this equipment. Long-term service contracts are available on this and other Hobart products.

DISPOSAL

The machine operator is responsible for disposing of the machine and its operating materials correctly and in accordance with environmental regulations. Observe the national and local regulations.

13 PRODUCT DISCLAIMER
Installations and repairs carried out by non-authorized technicians or using non-genuine spare parts, and any technical alterations to the machine not approved by the manufacturer will invalidate the manufacturer’s warranty.
HOBART reserves the right to make changes or improvements to its products without prior notice.

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References

• Centerline Resources | Centerline

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