Rhima RC231 Dishwashers Instruction Manual

June 12, 2024
rhima

Operator’s ManualRhima RC231 Dishwashers RC108, RC231/SPECIAL, RC281, RC301/401/501
Crate WashersRhima RC231 Dishwashers 1Australia Tel: 1300 347 944
New Zealand Tel: 0800 902 054
Singapore Tel: +65 9107 8943

Rhima RC231 Dishwashers

INSTRUCTION MANUAL FOR DISHWASHERS

It is important to keep this instruction manual near the appliance for future consultation.
If the appliance is sold or transferred to another user, make sure this manual remains with the appliance so that the new owner is informed about the warnings and operation of the appliance. These instructions are given for safety reasons and they must be read  carefully before installing or using the appliance.

GENERAL INSTRUCTIONS

  • The appliance must be connected to water and electrical supplies by qualified tradespersons only and according to local regulations.

  • The appliance must be used by adults only. Do not let children play with, or operate this machine.

  • Only persons trained to use this dishwasher are permitted to operate it.

  • This appliance has been designed to wash food preparation and eating utensils. It has
    NOT been designed to wash objects soiled with petrol, paint, remnants of steel or iron, corrosive chemical products such as acids, alkalis, or solvents or any item that cannot be immersed in water.

  • Do not open the appliance door(s) while the appliance is operating. The appliance has a safety device which stops operation if a door is accidentally opened.

  • After using the appliance, isolate the electric and water supply.

  • Do not attempt to repair the appliance. Repairs made by unqualified persons may cause further damage and will void warranty.

  • Repairs and servicing of this appliance must be carried out by Rhima personnel only.

IMPORTANT CUSTOMER INFORMATION

  • To request a service, detergents or rinse additive contact your local Rhima Service centre below:
    Australia: 1300 347 944
    New Zealand: 0800 902 054
    Singapore: +65 9107 8943

ELECTRICAL INSTALLATION

This appliance must be connected to an earthed 3-phase electrical switched outlet of an appropriate rating.

PLUMBING INSTALLATION

The Australian installation shall be in accordance with The Plumbing Code of Australia (PCA).
This appliance should be connected to a hot water supply (Max 65°C ) for in accordance with Australian Standard AS/NZS 3500.1. for optimum performance.
The water supply pressure should be a minimum 200 kPa at all times and flow rate should be at least 10 litres per minute. A static pressure higher than 600 kPa (73.5 psi) requires a pressure reducing valve upstream of the supply line. If water pressure is below  200 kPa, the use of a rinse booster pump is recommended.
This appliance is designed to drain to a tundish. Waste connection to a spigot is not recommended and may cause draining issues.
The drainpipe should withstand 70°C (158°F) in continuous duty conditions.
The grey water drain hose must have a fixed watertight seal above the tundish in accordance with the Australian Standard AS/NZS 3500.2.

A DIAGRAM SHOWING THE CORRECT METHOD OF WASTE INSTALLATION IN ACCORDANCE WITH THE AUSTRALIAN STANDARD AS/NZS 3500.2 IS BELOW Rhima RC231 Dishwashers -
DIAGRAM

VENTILATION

Use extractor fans to guarantee a minimum ventilation of 500 m³/h. Increase the ventilation rate to 1500 m³/h if the machine is equipped with drying system. It is suggested to position the extractor fans close to the machine entry and exit and in  correspondence to the heat recovery fans.

MACHINE DESCRIPTION

Description of the machine, its accessories and its guards Machine description
Refer to annexes for the technical data of the machines.Rhima RC231
Dishwashers - machines

Example:
MACHINE IN RIGHT EXECUTION
A – SPLASH GUARD
B – PRE-WASH
C – WASH + RINSE
D – CONTROL PANEL
E – DRYER
F – EMERGENCY BUTTON
G – HEAT RECOVERY/STEAM CONDENSER/HEAT RECOVERY WITH HEAT PUMP
H – UPPER LOADING SYSTEM
I – WALL-MOUNTED CIRCUIT BOARD

Module Dimension
Width Height
A – SPLASH GUARD 300 mm
1820 mm (1) 900 mm
B – PRE-WASH 600 or 900 mm
C – WASH + RINSE 1300 mm
D – CONTROL PANEL 850 mm

2130 mm (1)
E – DRYER| 900 mm (1000 mm)| 2070 mm
2370 mm (1)
G – HEAT RECOVERY/STEAM CONDENSER| 450 mm o 1300 mm| 1860 mm
2160 mm (1)
G – HEAT RECOVERY WITH HEAT PUMP| 1000 mm| 2070 mm
H – UPPER LOADING SYSTEM| 610 mm| 2090 mm
(1) Special model for high baskets

This machine is built with high quality materials in particular AISI 304 stainless steel (AISI 316 for boilers and tanks) with a wall thickness to ensure a long lifetime.

Pre-wash module (the presence depends on the model chosen): a preliminary washing is carried out with low temperature thermostatically controlled to melt the alimentary residuals and avoid the proteins denaturation.
Wash module: a proper washing of the baskets is performed with temperature thermostatically controlled.
Rinse module: a pre-rinse is performed that removes most of the detergent, then a final rinse is performed with high temperature thermostatically controlled.
Autotimer: the Autotimer function (activated by default) allows stopping the machine if it is in start-mode but not operating at the moment.
It can happen in two cases:

  1. The machine is working in vain (it is in operation but it is not used).
  2. The machine is in operation but a basket accumulation exiting the machine causes the limit switch SQ1 to trip (F1).

In these cases, the timer set by default at 300 seconds trips.
By inserting a basket or clearing the exit the machine restarts automatically to operate.

Available options

Dryer E :
It conveys hot and dry air that creates the ideal conditions for rapid drying.
The dryer heating can be turned on or off by the operator.
Stage dryer E :
An air knife removes the water from the basket, by using a narrow focused stream of air.
Heat recovery G :
The goal is the recovery of the steam heat exiting the machine that otherwise would be dispersed, and use it to pre-heat the water entering the boiler.
The machine must have a cold water supply for the rinse.
Heat recovery with heat pump G :
The goal is the recovery of the steam heat exiting the machine that otherwise would be dispersed, and use it to pre-heat the water entering the boiler.
It exploits a heat pump to further increase the water temperature entering the boiler.
The machine must have a cold water supply for the rinse.
WARNING: If this optional is present the Autotimer must be set to a minimum value of 300 seconds.

WARNING: Heat Recovery system and Steam Condenser – installation (optional)
It is strictly forbidden to connect the machine’s vent directly with the outdoor!
Cold weather conditions might seriously damage the Thermal Recovery system or the Steam Condenser.

Upper loading system H
Pressure Increase Pump :
It allows a proper machine operation when the feeding water pressure of the machine is lower than 200 kPa.
Inverter :
It allows adjusting the speed of the conveyor in 5 steps and reaching the DIN speed.

CONTROL PANEL AND RELATED SYMBOLS – Display 1

Rhima RC231 Dishwashers - Display 1 A: START / STOP key. Function key.
B: ON / OFF key.
C and D: Scrolling keys (▼ / ▲, – / +).
E: INFO key.
F1: Display with scrolling text
F2: Scrolling LEDs bar

MACHINE IN STAND-BY – Display 2

Rhima RC231 Dishwashers - Display 2 B: ON / OFF key with ON function.
To turn the machine ON.
F1: Display with scrolling text: provides information about the current status of the machine.

MACHINE READY OR IN OPERATION – Display 3

Rhima RC231 Dishwashers - Display 3 A: START / STOP key.
When the machine is ready, it allows the start. The conveyor is activated by pressing this key.
When the machine is running, allows stopping and putting in ready mode. The conveyor is stopped by pressing this key.
B: ON / OFF key with OFF function.
Allows putting the machine in STAND-BY mode.
C and D: Scrolling keys (▼ / ▲, – / +)
When in the menu either scrolls the items or modifies all adjustable parameter (increase and/or decrease).
When the machine is ready or running: to adjust the conveyor speed.

E: INFO key.
It provides additional information about:
Boiler temperature
Tank temperature
Prewash temperature (if present)
Date
Hour
Factory code
Installed firmware.
It’s possible scrolling the menu items by using the C and D keys.
F1: Display with scrolling text. Provides information about the status of the machine, temperatures and other indications.
Some messages are displayed alternatively to temperatures. See chapters 5 and 12 for more information.
F2: Scrolling LEDs bar.
One LED lit: indicate the machine is ON and in operation.
Series of LED lit: indicate the time remaining to the energy saving mode activation. See paragraphs Autotimer (Page 5) for more information.

LIGHTS (see paragraph Display 1 (Previous page)).

  1. Flashing green: machine ON and in operation.
    Still green: machine ON in energy saving mode (see paragraph Autotimer (Page 5))

  2. Green: tanks filled.

  3. Yellow: baskets limit switch activated.

  4. Yellow: tank heating activated.

  5. Still yellow: boiler heating activated.
    Flashing yellow: intermittent boiler heating activated.

  6. Green: lower speed selection.

  7. Green: higher speed selection.
    Both 6 and 7 lights are OFF when the machine is equipped with the optional INVERTER and an intermediate speed is selected.

  8. Green: INFO Menu

  9. Unused

  10. Green: clear inlet for basket (for models with pre-wash on corner only)

  11. Green: machine ON.
    Still red: machine in stand-by mode
    Flashing red: alarm

FUNCTIONING OF THE MACHINE
Machine start-up

  • Check that the overflow pipes are correctly inserted

  • Turn on the wall-mounted main switch. See section MACHINE DESCRIPTION (Page 4)

  • Open the water supply valves.

  • Turn on the machine using the control panel.

  • Wait for the filling operations to be completed.
    Once filling of all the tanks is finished, the heating of the machine starts. In this phase the display shows the message HEATING alternatively to temperatures.

  • When heating is finished, the display shows the message READY TO START alternatively the wash/rinse temperatures.
    To ensure proper washing, start the operations after the display shows the message READY TO START.

Washing

  • To set the desired working speed, use keys D ▼ (decrease) and C ▲ (increase) to set a suitable speed for the type of work to be carried out.
    There are two possible settings:
    Speed 1: minimum. (optimal cleaning results)
    Speed 2: maximum. (maximum throughput)
    If the machine is equipped with the optional INVERTER, there are five possible settings.

  • If the machine is not equipped with an automatic chemicals dispenser, manually introduce the detergent in the wash tank. See section DETERGENTS (Page 9) ).

  • Press START / STOP A button to start the conveyor movement.

  • Place the baskets on the conveyor (see paragraph Basket loading (Next page) – pict. 3 & 4).
    Push the basket inside the splash guard A until engaged with the towing system.
    The washing sequence is the following:
    ►Low temperature pre-wash (B – if there is).
    ►Thermostatically controlled temperature wash C, followed by a pre-rinse.
    ►Final rinse C carried out with clean water coming from the hydric network and thermostatically controlled and eventually rinse aid.
    ►Drying (E – if there is the optional module).
    ►Baskets exit zone equipped with roller conveyor and limit switch.

  • Push the START / STOP A, button to stop the operation.

N.B. : It is recommended to drain and change the tank’s water when very dirty or, at least, twice a day.

WARNING: In case a dangerous situation occurs, push the emergency button F. The towing system, pumps and heaters turn off. Before restarting the appliance, check if the emergency is over. The emergency button rearmament does not start the machine but it  position the appliance in stand-by.
The emergency button should not be used as usual machine switch off system. Rhima RC231 Dishwashers - Icon 1

It is forbidden to remove the basket from the machine before it has come out of the tunnel and to insert hands or arms inside the machine when it is in movement (see pict. 2).
Note: Always turn the machine off before inserting your hands or arms inside the tunnel. End washing operations

  • Press START / STOP A key.

  • Press key ON/OFF B.

  • Drain the tanks.
    Open the doors and remove filters and overflows.

  • Turn off the wall-mounted main switch I.

  • Shut the water supply valve(s).

  • Start the cleaning of the machine (see chap. MAINTENANCE (Page 10) ).

Baskets loading
Before loading the baskets it is necessary to carry out a proper cleaning off of the food residuals.
Follow these tips:

  • Baskets must not lie inside one another, or be covering each other.
  • Place the baskets so that all the surfaces can be reached by the water; otherwise the baskets cannot be washed properly.
  • Make sure that the baskets are placed in a stable position and that they do not turn upside down.
  • Place the baskets upside down for washing.

Rhima RC231 Dishwashers - tunnelSome food, like carrots, tomatoes, ketchup, may contain natural colorant substances that may alter the baskets and plastic parts if they are in large quantity.
The eventual color alteration does not mean that the plastic is not thermo- resistant.
Items not suitable to be washed in a dishwasher:

  • Wooden baskets or with wooden parts; wood wraps and loses its characteristics if it is exposed to high temperatures. In addition the glues used are not suitable for dishwashers.
  • Plastic baskets not thermo-resistant.

It is suggested to purchase only baskets suitable for washing in dishwashers.
The washing and drying effectiveness is determined by the baskets conformation. A basket with smooth and linear surfaces, without any ribs and hollows where washing water could stand, gives the best drying results.
If after the washing the baskets are not clean or they have washing residuals it is mandatory to repeat the procedure.
If the machine is equipped with an upper loading system, do not to push forcefully the baskets on the machine, as they must be gently placed and accompanied.Rhima RC231 Dishwashers - baskets 1If the machine is equipped with an upper loading system, the baskets must be loaded one by one. Entering into the machine the baskets have to hook the basket runners properly (see pict. 5).
Basket dimensions:
Maximum width 500 mm – Minimum width 450 mm
Maximum height 500 mm or 800 mm (depends on the model chosen)
Maximum lenght 800 m

WARNINGS:

  • Do not slam the doors when opening and closing.
  • Do not put material or objects on top of the machine.
  • The water used for the washing and the rinsing is not potable because of the presence of chemical additives. In case of contact with skin or eyes wash them immediately with plenty of water and check the safety instructions of the detergent manufacturer. If  necessary, contact a doctor.
  • Some important rules must be followed for the use of this appliance:
  1. Never touch the appliance with wet hands or feet
  2. Never use the appliance when barefooted
  3. Do not install the appliance in places exposed to water splashes.
  • This machine must be disconnected from the main electrical supply after use at the end of the day and for any service/maintenance operation. Switch off the main switch located on the wall, which shall be installed by a professional installer. Shut the water  supply valve(s).
  • In case a crate or bin becomes stuck, first switch off the wall-mounted main switch and then remove the cause of the block.

WARNING: INTERNAL CLEANING OF THE MACHINE SHALL BE CARRIED OUT AT LEAST 10 MINUTES AFTER IT HAS BEEN TURNED OFF.
WARNING: DO NOT INSERT HANDS AND/OR TOUCH THE PARTS LOCATED AT THE BOTTOM OF THE WASH TANK AND/OR AT THE END OF THE WASH CYCLE.
WARNING: DO NOT TOUCH THE CONVEYOR WHILE IT IS WORKING.

DETERGENTS

Using detergent
The detergent must be of good quality, of NON-FOAMING type, specific for use in automatic washing equipment.
The use of liquid detergents is recommended.
The dosing has to be done following the recommendations of the detergent manufacturer and in accordance with the water and baskets characteristics.
The detergent has to be inserted only in the wash tank 1. For manual dosing remember that the wash tank contains about 85 litres of water.
Note: It is highly recommended NOT to use detergents with chlorine-based reagents as they may damage stainless steel components including heater elements.

Using rinse aid
It is possible to use the rinse aid to get quicker drying.
The dosing has to be done following the recommendations of the rinse aid manufacturer and in accordance with the water characteristics.
Note: too much chemicals produces foam that reduces the effectiveness and lifetime of the washing pump.
Too much chemicals might leave residuals on the baskets.

OBSERVANCE OF THE RULES OF HYGIENE AND H.A.C.C.P.
In order to meet the correct H.A.C.C.P. procedures remember to prepare a sheet with tables where the shift operator enters the date and time the washing starts, the time the washing ends, the tanks and boilers temperatures and any other note/ alarms that have  tripped and what he/she has done to ensure sanitary safety.
This is the reason why the machine is equipped with:

  • Temperature gauges that indicate the boiler and tank temperature.
  • Malfunctioning gauges.
  • Possibility to consult the washing parameters.

MAINTENANCE

WARNING: The machine including the electrical cabinet is not protected against pressure water jets, therefore avoid the use of this type of cleaning.
It is also suggested to contact cleaning product dealers for detailed information about methods and products for a periodical sanitizing of the machine.
Do not use bleach or chlorine-based detergents to clean the machine.
Regular maintenance
The perfect operation of the machine depends on a careful cleaning that is necessary at least once a day with the following procedure:

  • Turn off the machine as explained in the paragraph End washing operations (Page 8).

  • If the machine is equipped with Heat Recovery with the heat pump clean the extractable filter (see pict. 8).

  • With empty tank, extract the filters of the tanks and the pumps (see pict. 6 & 7). Be careful that the washing residuals in the filters do not fall in the tanks. Clean the filters with a rigid brush underneath a powerful water jet.
    Rhima RC231 Dishwashers - water jet

  • Extract the wash and the rinse arms (see pict. 9) and carefully clean the nozzles and the dome filters of the rinse nozzles underneath running water.

  • Carefully clean the tanks avoiding the use of chlorine-based detergents.

  • Clean the shutters (long on the outside, short on the inside).

  • Clean the entry and exit shelves.

  • Reassemble all the parts and replace the arms in their seats.

  • It is suggested to leave the doors of the machine open at the end of the day.
    Do not use a metal scouring pad and/or corrosive products to clean the dishwasher.
    Do not use pressure cleaning systems.
    Rhima RC231 Dishwashers - cleaning systems

Special Maintenance – by qualified Service Personnel only
Once or twice per year, the machine should be checked by qualified Service Personnel:

  • Remove scaling from the heating elements
  • Check the status and the tightness of all gaskets
  • Check the perfect state and/or wear of the components
  • Check the effi ciency of the dispensers
  • Tighten firmly all electrical connections at least once per year
  • Clean the intake filter of the solenoid valve
  • Check the state of the safety devices of the doors/boilers, limit switches
  • Check the calibration of the clutch.
    Pay attention to not wet the motor or any electric part. Perform maintenance with the wall-mounted main switch turned OFF.

Special Maintenance – Heat Recovery with heat pump optional
Every two months the Heat Recovery should be checked by qualified Service Personnel to:

  • Clean the finned exchangers inside the Heat Recovery.
  • Check the heat pump’s flow is properly charged.

Special Maintenance – Heat Recovery
Every three months the Heat Recovery should be checked by qualified Service Personnel to:

  • Clean the finned exchanger inside the Heat Recovery.

ENVIRONMENTAL ASPECTS

Packing
The packing consists of the following:

  • a wooden crate;
  • extensible belt in nylon (LDPE);
  • polystyrene foam (PS).
    Please dispose of the materials listed above, according to the current regulations.

Disposal
The symbol WEEE used on this product indicates that it cannot be treated as domestic waste. Proper disposal of this product contributes to protecting the environment. For more information on product recycling, contact the local authorities, domestic waste  authorities or the shop where the product was purchased.
For product or part disposal, follow the Council directives 2011/65/EU and 2012/19/EU as amended and/ or application legislative decrees.
The present product or parts can not be disposed of as urban waste but shall be collected in separate containers (see the waste bin on wheels symbol – pict. 10 – with an “X” on the product).
At the time of product disposal, the user shall refer to the waste electrical and electronic equipment (WEEE) specification.

The manufacturer guarantees the absence of dangerous substances in the EEA used in conformity to the directive 2011/65/EU.
If the user does not comply with the regulations he/she shall be subject to the penalties foreseen by each member state.
Disconnect electricity and water before disposal.
Cut the electrical cable to ensure that further use is impossible.
All metal parts are recyclable as they are made of stainless steel.
Recyclable plastic parts are marked with the plastic material symbol.

ECOLOGICAL ASPECTS

Recommendations for optimum use of energy, water and additives
If possible, use the machine at full load: This will avoid wasting detergent, rinse aid, water and energy.
Detergents and rinse aids: Use detergents and rinse aids having the highest biodegradability so that the environment is better respected. Have the correct dosage according to the water hardness checked at least once a year. An excess of product pollutes rivers  and seas, whereas an insuffi cient amount compromises basket washing and/or hygiene.
Tank and boiler temperatures: The temperatures of the tank and boiler are set by the manufacturer so as to get the best washing results with the majority of detergents on the market. These can be reset by the installer according to the detergent used.
Cleaning off: Carefully clean off the baskets using water at ambient temperature with moderation so as to make removal of animal fats easier. To remove encrusted matter, soaking in hot water is recommended.
Notes: Wash the objects as soon as possible in order to prevent the deposits from drying and jeopardizing the effectiveness of the washing. To get an effi cient wash, it is advisable to regularly clean and maintain the dishwasher (see par. MAINTENANCE (Page  10)).

Non-compliance with the above points and all the information described in this manual could determine a waste of energy, water and detergent, with consequent increase in operating costs and/or decrease in performance.

SIGNALS AND ALARMS – Display 4
During the operation, the machine visualises the current status of the machine, the alarms and other situations that need the operator attention.
Example: machine ready to start display notification: Rhima RC231
Dishwashers - Icon 3Signals – Display 5
The signal messages are displayed and signalized with a beep.
When DETERGENT LEVEL appears on the display it means that the detergent is empty.
When RINSE-AID LEVEL appears on the display it means that the rinse aid is empty.
When DOOR OPEN appears on the display it means that you are trying an operation that cannot be done with the door opened or that you opened the door and interrupted a cycle in progress.
When DRAIN THE TANKS appears on the display it means that you are trying an operation that cannot be done with the tanks full.
When FREE THE OUTLET appears on the display it means that it is necessary to remove the baskets from the exiting shelf to continue the operation.
When HEAT PUMP MAINTENANCE appears on the display it means that you must call a technician for the Heat Recovery with heat pump maintenance (see par. Special Maintenance – Heat Recovery (Page 11) – only if the machine is equipped with the  optional).
Signal screen example:Rhima RC231 Dishwashers - Icon 4 Alarms – Display 6
The alarms are displayed with an alphanumeric code followed by a brief description.
Alarm screen example:Rhima RC231 Dishwashers - Icon 5

Alarms description

ALARM ALARM DESCRIPTION REMEDIES
B2 BOILER 1 PROBE FAILURE Rated temperature cannot be reached.

It’s recommended to suspend the washing. Contact the Rhima Service Department.
B3| BOILER 1 HEATING FAILURE| Please turn OFF the appliance, by pressing the ON/OFF B button, and turn it ON again, after a few seconds. Should the alarm persist, please contact the Rhima Service Department.
B5| BOILER 1 OVERTEMPERATURE| It is recommended to turn OFF the appliance and contact the Rhima Service Department.
B10| RINSE LOW TEMPERATURE| Please make sure that rinse arms and nozzles are in the right position. Should the alarm persist, please contact the Rhima Service Department.
E1| WASH TANKS FILLING FAILURE| Please check that water inlet connection is working. Please turn OFF the  appliance, by pressing the ON/OFF B button, and turn it ON again, after a few  seconds. Should the alarm persist, please contact the Rhima Service Department.
E2| WASH1 PROBE FAILURE| Washing results may be affected.
Please contact the Rhima Service Department.
E3| WASH1 HEATING FAILURE| Please turn OFF the appliance, by pressing the ON/OFF B button, and turn it ON again, after a few seconds. Should the alarm persist, please contact the  Rhima Service Department.
E5| WASH1 OVERTEMPERATURE| It is recommended to turn OFF the appliance and contact the Rhima Service Department.
E7| WASH1 PUMP THERMAL PROTECTION| It’s recommended to suspend the washing. Please contact the Rhima Service Department.
M1| PREWASH FILLING FAILURE| Please check that water inlet connection is working. Please turn OFF the appliance, by pressing the ON/OFF B button, and turn it ON again, after a few seconds. Should the alarm persist, please contact the Rhima Service Department.
M2| PREWASH PROBE FAILURE| Washing results may be affected.
Please contact the Rhima Service Department.
M3| PREWASH COOLING FAILURE| Please check that the cold water inlet connection is working. Please turn OFF the appliance, by pressing the ON/OFF B button, and turn it ON again, after a few seconds. Should the alarm persist, please contact the Rhima Service  Department.
M7| PREWASH PUMP THERMAL PROT.| Washing results may be affected.
Please contact the Rhima Service Department.
U10| OPTIONAL MOTORS THERMAL PROT.| Please contact the Rhima Service Department.
W1| THERMAL PROTECTION| Please contact the Rhima Service Department.
Z8| GENERAL ALARM| Emergency button pressed. Make sure that the emergency is solved. To resume working, release the emergency button. WARNING: the emergency button should not be used as ordinary mean to turn the appliance ON/OFF.
Z17| RINSE WATER SUPPLY FAILURE| Please check if the water supply is working and make sure that rinse arms and nozzles are in the proper position. Please turn OFF the appliance, by pressing the ON/OFF B button, and turn it ON again, after a few seconds. Should the alarm persist, please contact the Rhima Service Department.

MACHINE PROBLEMS, CAUSES AND CURES

Type of Problem Possible Causes Cure
The machine does not load water Water supply tap is closed Open the water

supply tap
Shortage of supply water pressure| Turn off and turn back on when the pressure increases or install a booster pump
Solenoid valve filter blocked| Contact the Rhima Service Department
Unsatisfactory washing results| The washing nozzles are clogged| Clean the nozzles and correctly reposition the arms in the proper seats
Detergent consentration too low| Change the dosage of detergent
Filters too dirty| Remove and clean the filters with a brush under running water, then replace them in their seats
Presence of foam| Always use a non-foaming detergent. Check the detergent and rinse-aid dosages and reduce them if necessary
Check the tank temperature (Which must be between 50°C and 60°C)| Contact the Rhima Service Department
Length of washing cycle inadequate for the type of grime build-up| Choose a longer cycle if possible, otherwise repeat the wash cycle
Washing water too dirty| Drain the water in the tanks, clean the filters. Reload the tank and replace the filters properly.
The objects are not dried properly| Insufficient rinse-aid dosage| Increase the amount of rinse-aid. Contact the Rhima Service Department.
Rinse water temperature under 80°C| Check the temperature of the water entering the system.
Streaks or smears on the objects| Rinse-aid concentration too high| Always use a non-foaming detergent. Check the detergent and rinse-aid dosages and reduce them if necessary. Contact the Rhima Service Department.
During wash cycle the machine stops and draws water| Check overflow/drain pipe is correctly seated and/or seal is not damaged| Remove and correctly reposition the overflow/drain pipe. Replace seal if required.
Faulty water level switch| Contact the Rhima Service Department
A tank emptied due to excess of foam or lack of curtains/splash guards| Reduce the concentration of rinse-aid/detergent or correctly reposition the curtains or the other guards that may have been removed.
Wash arms incorrectly positioned| Check and correctly reposition the wash arms.
During wash cycle the machine stops| Check the exit conveyor (If fitted) is not full of crates/baskets| Empty exit conveyor.
The machine does not wash and the pump is noisy on machines with three-phase pump| The pump direction is inverted due to incorrect connection of the power supply cable| Contact the Rhima Service Department
The level of water inside the tank is too low| Remove and correctly replace the overflow pipe
Correctly reposition the curtains or the other guards that may have been removed.
Check and correctly reposition the wash arms.
If the level of water continues to fall, contact the Rhima Service Department
The suction of the pump is clogged| Check if the suction filters of the pump (placed in the tanks) are clogged. If the problem persists contact the Rhima Service Department.

OPTIONALS PROBLEMS, CAUSES AND CURES (if fitted)
Heat recovery with heat pump

Type of Problem Possible Causes Cure
Compressor attach/detach Safety pressure switches intervention Contact the

Rhima Service Department
Water temperature supply too high| Varify the water temperature supply
Water capacity not sufficient| Varify the static pressure of water supply
Dirty steam coil| Clean the filter. Should the alarm persists, please contact the Rhima Service Department to clean the Heat Recovery.
Low boiler temperature| Dirty steam coil| Clean the filter. Should the alarm persists, please contact the Rhima Service Department to clean the Heat Recovery.
Heat pump has lost gas| Contact the Rhima Service Department
The Heat Recovery has been switched OFF and then switched ON.| Wait a couple of minutes to restart the compressor and that the boiler temperature is restored.
Safety pressure switches intervention| Contact the Rhima Service Department
The objects are not dried properly| Insufficient rinse-aid dosage| Verify the rinse-aid dosage and increase it, if needed.
Dirty steam coil| Clean the filter. Should the alarm persists, please contact the Rhima Service Department to clean the Heat Recovery unit.
Heat pump has lost gas| Contact the Rhima Service Department

Heat Recovery

Type of Problem Possible Causes Cure
Low boiler temperature Dirty steam coil Should the alarm persist, please

contact the Rhima Service Department to clean the Heat Recovery.
The ventilation motor is damaged| Contact the Rhima Service Department
The objects are not dried properly| Insufficient rinse-aid dosage| Verify the rinse-aid dosage and increase it, if needed.
Dirty steam coil| Should the alarm persist, please contact the Rhima Service Department to clean the Heat Recovery.

Dryer

Type of Problem Possible Causes Cure
The objects are not dried properly Cold air is emitted Contact the Rhima

Service Department
The fan direction in inverted due to incorrect power cable connection| Contact the Rhima Service Department

Australia Tel: 1300 347 944
New Zealand Tel: 0800 902 054
Singapore Tel: +65 9107 8943

DETERGENTS

To request detergents or rinse additive contact your local Rhima Service centre below:
Australia: 1300 347 944
New Zealand: 0800 902 054
Singapore: +65 9107 8943

Superwash
10L Drum
For all other washing

Rhima RC231 Dishwashers - Image Version 1.1

Documents / Resources

| Rhima RC231 Dishwashers [pdf] Instruction Manual
RC231, RC231 Dishwashers, Dishwashers, RC231 Special, RC301, RC401
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