ALTO-SHAAM Prodigi 7-20 Pro Countertop Combi Oven Owner’s Manual

: June 14, 2024
: ALTO SHAAM

Prodigi 7-20 Pro Countertop Combi Oven

Product Information

Specifications

Model: Classic Control
Variants: 6-10E, 10-10E, 7-20E, 10-20E, 20-10E, 20-20E, 6-10G,
10-10G, 7-20G, 10-20G, 20-10G, 20-20G
Manufacturer: Alto-Shaam, Inc.
Address: P.O. Box 450 W164 N9221 Water Street Menomonee Falls,
WI 53052
Language: American English

Product Usage Instructions

Safety

The Meaning of Signal Words

This manual contains signal words that indicate the level of
risk associated with specific situations. It is important to follow
these signal words to ensure personal safety and prevent equipment
damage. The different signal words used are:

DANGER: Indicates a hazardous situation which,
if not avoided, will result in serious injury or death.
WARNING: Indicates a hazardous situation
which, if not avoided, could result in serious injury or
death.
CAUTION: Indicates a hazardous situation
which, if not avoided, could result in minor or moderate
injury.
NOTICE: Indicates a situation which, if not
avoided, could result in property damage.

Operation

How to Turn On and Turn Off the Oven

To turn on the oven, follow these steps:

Locate the power switch on the oven.
Toggle the power switch to the “ON” position.
The oven will start heating up.

To turn off the oven, follow these steps:

Locate the power switch on the oven.
Toggle the power switch to the “OFF” position.
The oven will stop heating up and shut down.

Components

Control Layout Diagram

The control layout diagram shows the different buttons and
controls on the oven. Refer to this diagram to understand the
functions of each control.

Interface Board

The interface board is responsible for communication between the
user and the oven. It allows you to input settings and receive
feedback from the oven.

Control Board

The control board is the main control unit of the oven. It
processes the input from the interface board and controls the
oven’s operations accordingly.

Relay Board

The relay board is responsible for controlling the power supply
to various components of the oven. It ensures that power is
distributed correctly and safely.

Option Board

The option board provides additional features and
functionalities to the oven. It may include options such as timers,
presets, or specialized cooking modes.

Maintenance

Maintenance Schedule

Regular maintenance is essential to keep the oven in optimal
condition. Refer to the maintenance schedule provided in the manual
for recommended maintenance tasks and their frequencies.

Troubleshooting

Error Codes

If the oven encounters an error, it may display an error code.
Refer to the error code section of the manual to identify the issue
and take appropriate corrective actions.

Gas System Layout Diagram

The gas system layout diagram shows the configuration of the gas
system in the oven. Use this diagram to understand the gas flow and
components of the system.

Troubleshooting Trees

Troubleshooting trees provide step-by-step instructions for
diagnosing and resolving common issues with the oven. Follow the
troubleshooting tree specific to your problem to troubleshoot
effectively.

Electrical Schematics QR Codes

The electrical schematics QR codes provide quick access to
detailed electrical schematics of the oven. Scan the QR codes using
a QR code reader to view the schematics.

FAQ (Frequently Asked Questions)

Q: Can I reproduce or use this manual without permission?

A: No, you cannot reproduce or use this manual in any manner
without the express written permission of Alto-Shaam, Inc.

Q: How can I reach Alto-Shaam’s emergency repair service?

A: You can reach Alto-Shaam’s 24-hour emergency service call
center by calling 800-558-8744. This service is available outside
standard business hours and covers the entire United States.

Q: Is the emergency service available on weekends and

holidays?

A: Yes, the emergency service is available seven days a week,
including holidays.

Service Manual

Prodigi®

Classic Control

6-10E 10-10E
7-20E 10-20E 20-10E 20-20E

6-10G 10-10G
7-20G 10-20G 20-10G 20-20G

MN-48156-EN
REV.01 5/23
EN

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Manufacturer’s Information

Copyright Trademarks

© Copyright 05/23 by Alto-Shaam, Inc. All rights reserved.
This manual or any portion thereof may not be reproduced or used in any manner whatsoever without the express written permission of Alto-Shaam, Inc.
All trademarks referenced in this documentation are the property of their respective owners.

Manufacturer

Alto-Shaam, Inc. P.O. Box 450 W164 N9221 Water Street Menomonee Falls, WI 53052

Original instructions The content in this manual is written in American English.

2

FOREWORD

Alto-Shaam 24/7 Emergency Repair Service

Call Availability

Call 800-558-8744 to reach our 24-hour emergency service call center for immediate access to local authorized service agencies outside standard business hours. The emergency service access is provided exclusively for Alto-Shaam equipment and is available throughout the United States through Alto-Shaam’s toll free number.
Emergency service access is available seven days a week, including holidays.

FOREWORD

3

INTENTIONALLY BLANK 4

TABLE OF CONTENTS

Manufacturer’s Information . . . . . . . . . . . . . . . . . . . . . . . . 2

Foreword

3

Alto-Shaam 24/7 Emergency Repair Service . . . . . . . . . . . . . . . 3

Table of Contents

5

Safety

7

The Meaning of Signal Words . . . . . . . . . . . . . . . . . . . . . . . 7

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operation

11

How to Turn On and Turn Off the Oven . . . . . . . . . . . . . . . . . 11

Components

12

Control Layout Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Option Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Maintenance

19

M a i n t e n a n c e S c h e d u l e . . . . . . . . . . . . . . . . . . . . . . . . 19

Troubleshooting

22

E r r o r C o d e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

G a s S y s t e m L a y o u t D i a g r a m . . . . . . . . . . . . . . . . . . . . 28

Tr o u b l e s h o o t i n g T r e e s . . . . . . . . . . . . . . . . . . . . . . . . . 29

E l e c t r i c a l S c h e m a t i c s Q R C o d e s . . . . . . . . . . . . . . . . . . 36

5

INTENTIONALLY BLANK 6

SAFETY
The Meaning of Signal Words
This manual contains signal words where needed. These signal words must be obeyed to reduce the risk of death, personal injury, or equipment damage. The meaning of these signal words is explained below.
DANGER Danger indicates a hazardous situation which, if not avoided, will result in serious injury or death. WARNING Warning indicates a hazardous situation which, if not avoided, could result in serious injury or death. CAUTION Caution indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Notice indicates a situation which, if not avoided, could result
in property damage.
NOTE: Note indicates additional information that is important to a concept or procedure.
7

SAFETY

SAFETY
Safety Precautions

Before you begin

Read and understand all instructions in this manual.

Electrical precautions

Obey these electrical precautions when using the appliance:
Connect the appliance to a properly grounded outlet. Do not use the appliance if it is not properly grounded. Consult an electrician if there is any doubt that the outlet used is properly grounded.
Keep the cord away from hot surfaces. Do not attempt to service the appliance or its cord and plug. Do not operate the appliance if it has a damaged cord or plug. Do not immerse the cord or plug in water. Do not let the cord hang over the edge of a table or counter. Do not use an extension cord.

Usage precautions

Obey these usage precautions when using the appliance:
Only use this appliance for its intended use of heating or cooking. Always keep liquids, or foods that can become liquid when heated, level and at or
below eye level where they can be seen. Use utensils and protective clothing such as dry oven mitts when loading and
unloading the appliance. Use caution when using the appliance. Floors adjacent to the appliance may
become slippery. Do not cover or block any of the openings of this appliance. Do not cover racks or any other part of this appliance with metal foil. Do not use this appliance near water such as a sink, in a wet location, near a
swimming pool, or similar locations. Do not unplug or disconnect the appliance immediately after cooking. The
cooling fans must stay on to protect electrical components.

Maintenance precautions

Obey these maintenance precautions when maintaining the appliance:
Obey precautions in the manual, on tags, and on labels attached to or shipped with the appliance.
Only clean the appliance when oven is OFF. Do not store the appliance outdoors. Do not clean the appliance with metal scouring pads. Do not use corrosive chemicals when cleaning the appliance. Do not use a hose or water jet to clean the appliance. Do not use the appliance cavity for storage. Do not leave flammable materials, cooking utensils, or food inside the appliance
when it is not in use. Do not remove the top cover or side panels. There are no user-serviceable
components inside.

8

Operator training
Operator qualifications
Condition of appliance Servicing the appliance
Sound power

SAFETY
All personnel using the appliance must have proper operator training. Before using the appliance:
Read and understand the operating instructions contained in all the documentation delivered with the appliance.
Know the location and proper use of all controls. Keep this manual and all supplied instructions, diagrams, schematics, parts lists,
notices, and labels with the appliance if the appliance is sold or moved to another location. Contact Alto-Shaam for additional training if needed.
Only trained personnel with the following operator qualifications are permitted to use the appliance:
Have received proper instruction on how to use the appliance. Have demonstrated their ability with commercial kitchens and commercial
appliances. The appliance must not be used by:
Persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision concerning use of the appliance by person responsible for their safety.
People impaired by drugs or alcohol.
Children should be supervised to ensure that they do not play with the appliance. Children shall neither clean nor maintain the appliance.
Only use the appliance when:
All controls operate correctly. The appliance is installed correctly. The appliance is clean. The appliance labels are legible.
Only trained personnel are permitted to service or repair the appliance. Repairs that are not performed by an authorized service partner or trained technician will void the warranty and relieve Alto-Shaam of all liability. Original manufacturer’s replacement parts may be substituted; however, these parts must be of equal quality and specifications as those provided by Alto- Shaam.
To prevent serious injury, death or property damage, have the appliance inspected and serviced at least every twelve (12) months by an authorized service partner or trained technician.
Contact Alto-Shaam for the authorized service partner in your area.
The A-weighted sound pressure level is below 70 dB(A).

9

SAFETY

Personal Protective Equipment (PPE)

Wear the following Personal Protective Equipment (PPE) while cleaning the appliance:
Protective gloves Protective clothing Eye protection Face protection

Service Technician Training

Only trained personnel are permitted to service or repair the appliance. Service technicians must be knowledgeable in current codes and standards as stated by the appropriate agencies, such as:
The National Fire Protection Association (NFPA) National Electrical Code (NEC) The Service Technician’s employer

10

OPERATION
How to Turn On and Turn Off the Oven

Before you begin Turning on the oven

The oven must be connected to electric power. Make sure the gas supply is connected. Make sure the water supply is connected.

To turn on the oven, do the following.

Step 1.

Action
Touch the ON/OFF button a.

LED

a

OPERATION

The oven is now on.

CT-TS-014421

Turning off the oven

To turn off the oven, do the following.

2. Touch and hold the ON/OFF button a until the “Shut Down Options” screen displays. Touch “Shut down” b.

a

LED

b

The oven is now off.

CT-TS-014425
11

THIS DIAGRAM IS SUBJECT TO CHANGE WITHOUT NOTICE
ALWAYS USE THE ELECTRICAL SCHEMATIC FOR ACTUAL CONNECTIONS

PRODIGI – CLASSIC CAPACITIVE TOUCH
NOT TO SCALE

ON/OFF BOARD

TOP OF OVEN

POWER SUPPLY

POSITIVE

NEGATIVE

X13 1

X14

1

X15 1

1
X12
1
X11
1
X10
1
X9
1
X8

J1
CONTROL BOARD
J2

J3
X20 J4 PT1000

J5

J6

PT100

J7

J8 X21

ON 1

S1
SEE DIP SWITCH TABLE

1

S2

1

S3

X22 X16
X23 D74
X17 D66
X18

X19

X26

D70D69

D68D67

X25

X24

D1

D15

D16 D17
D18 X1

D19

D20

D21
1
D22

D23

D24
D25 X2
D26

D27
D28
1
D36

D37

D38
D39 X3

D40 D41

D52 D42

1

X7

X6 1 X5

1 X4

USB PORT
SD CARD SPEAKER
CONNECT EITHER SIDE

J1

J21

SW1

OFF

INTERFACE BOARD

J19 CAN
J54

I2C

J38

J3

SW2

OFF

J4

J12
J13 S1

123456

CAPACITVE TOUCH CABLE
DIP SWITCHES SEE DIP SWITCH TABLE

J2

J10

SPEAKER

CONNECT EITHER SIDE

RIBBON CABLE
RIBBON CABLE

L C D
CAPACITIVE TOUCH CONTROL PANEL GLASS

INTERFACE BOARD SIDE B

BACKLIGHT CABLE

LCD INTERFACE CABLE

INTERFACE BOARD
J1 USB Host J2 Capacitive touch J3 Backlight J4 LCD interface J10 Speaker J12 12 VDC power J13 Ethernet – PRO J19 CAN Communication
J21 ON/OFF J38 Speaker S1 DIP switches

Rev.5/3/2023

Interface Board TOP of OVEN

J21 J1

INTERFACE BOARD SW1

SIDE A

J13

J12 S1

J54

J16 I2C

J3

J38

SW2

J4

BATT J10

COMPONENTS
TOP of OVEN
INTERFACE BOARD SIDE B

DO NOT USE WIFI

VMC-TS-008222.ai

Ref. Description

BATT I2C J1 J3 J4 J10 J12 J13 J16 J21 J38 J54 S1 SW1 SW2

Clock battery Capacitive touch cable USB connections Display back light LCD interface Speaker 12 VDC power Ethernet – PRO 8 GB micro SD card ON/OFF board Speaker RS 485/232 LVIO DIP switches (see table) DIP switch (off) DIP switch (off)

Product

Screen Orientation

Vector H

Landscape

Cook & Hold Landscape

Vector F Electric
Vector F Gas –
Converge DX Converge SX

Portrait Portrait Landscape Landscape

Prodigi Pro Electric

Portrait

Prodigi Pro Gas

Portrait

Prodigi Classic Elect Portrait

Prodigi Classic Gas

Portrait

SW 6
OFF OFF
OFF OFF ON ON
OFF
ON
OFF
ON

SW 5
OFF OFF
ON ON OFF OFF
OFF
OFF
OFF
OFF

SW 4
OFF ON
ON ON OFF OFF
OFF
ON
OFF
ON

SW 3
OFF OFF
OFF ON OFF OFF
ON
ON
ON
ON

SW 2
OFF OFF
OFF OFF OFF ON
OFF
OFF
ON
ON

SW 1
OFF OFF
ON ON OFF OFF
ON
ON
ON
ON

AS-PHD-014227

13

INTENTIONALLY BLANK 14

Control Board

COMPONENTS

15

Control Board

COMPONENTS

Ref. Pin(s) Description

Ref.

D1

– Green / Red LED 5V

X11

D15-D28 – Yellow LEDs – Function Outputs

–

D36-D42 – Yellow LEDs – Function Outputs

X12

D52

– Amber LED 12V at 5V Converter

–

D66

– White Led – Heart Beat Blinking

X13

D67-D68 – Blue LEDs – Rx – Tx Blinking

X14

D69-D70 – Not Used

–

D74

– Green LED 3.3V

X15

J1- J8

– Probe Jumpers 100, or 1000

–

S1

– DIP Switches – See Table on El Schematic –

S2

– DIP Switches – See Table on El Schematic –

S3

– DIP Switches – See Table on El Schematic –

X1

1-14 Not Used

X16

X2

1-2 RLY 50 VFD(s) – Power Enable

–

3-4 RLY 51 VFD – 20.20 – Lower – 440-480 Volt –

–

5-14 Not Used

–

X3

1

Not Used

X17

–

2

Cavity LED

–

3

Not Used

–

4

Cavity LED – 20.10, 20.20

–

5-8 Not Used

X18

–

9-12 Steam Relief Valves (RV) Browning Valves X19

–

13-14 Not Used

X20

X4

– 12 VDC Supply – Jumpers to IB

X21

X5

1-2 N7, High Limit – Test

X22

–

3-8 Not Used

X23

X6

– CB – IB Communication

X24

X7

1-2 Fan Motor – High Limit – Upper – Classic X25

–

3-4 Fan Motor – High Limit – Lower – Classic X26

–

5-10 Not Used

X27

X8

– Not Used

X28

X9

– Not Used

X29

X10

1-2 B3 – Water Temp Probe – Condensate

–

3-4 Not Used

–

5-6 B5 – Probe- Steam Bypass

–

7-8 Not Used

–

Pin(s)

Description

1-2 3-8 1-2 3-8 1-4
1-2 3-12 1-2 3-4 5-6 7-8 9-10 1 2 3 4 1 2 3 4 –
–
–
–
–

B10, Product Temp Probe Not Used N6, Cavity Temp Probe Not Used RGB Door Handle Lights Pressure Switch – Water Supply Not Used Door Switch Not used Steam Relief Valve Switch 1 (SW-1) Steam Relief Valve Switch 2 (SW-2) Not Used PWM to RB – Upper Burner Not Used Not Used Hall Effect from RB – Upper Burner PWM to RB – Lower Burner Not Used Not Used Hall Effect from RB – Lower Burner Not Used Not Used Not Used Not Used Interface to Option Board X4 Comm Cable to Relay Board X11 Not Used Not Used Not Used VFD(s) Communication – S600 Not Used Not Used –
–

16

COMPONENTS
Relay Board
17

Option Board

COMPONENTS

18

MAINTENANCE

Maintenance Schedule

Requirements Daily Weekly
Monthly

See topic How to Clean the Oven.
Make sure the oven is cooled down and off–inside of chamber 140°F (60°C) or less.

For daily maintenance, do the following.
Remove any spills with disposable paper wipes or a damp cloth. Wipe the outside of the oven with a damp cloth. Wipe the oven gaskets with soap and water. Inspect the oven gaskets for damage. Wipe the front door glass. Check the product probe. Check the screen for cracking or peeling. Contact Technical Service if needed.

For weekly maintenance, do the following.
Clean the entire oven. Make sure to use a non-abrasive nylon scrub pad. Do not spray the cleaner directly into the fan openings located in the rear of the
oven.
Inspect the oven cavity lamp. Inspect the oven cavity for signs of grease/carbon buildup. Check behind the fan panel inside the oven cavity for signs of grease/carbon
buildup.
Check behind the fan panel inside the oven cavity for signs of scale buildup. Inspect the heat exchanger for any signs of major deformation. If yes,
immediately remove from service and take corrective action.
Inspect the heat exchanger for any loose/disconnected pipes or flanges. If yes, immediately remove from service and take corrective action.
Inspect the convection elements for signs of cracking, deformation, or damage. Clean the ventless hood grease filters.

For monthly maintenance, do the following.
Clean out the drip tray line. Check the supplied water filtration and change as needed. Check for software updates. Check lighting. Inspect and test the proper draining of the oven cavity. Inspect the drain lines for leaks or clogs.

Continued on next page

19

Yearly

MAINTENANCE
Continued from previous page
Inspect the oven cavity for any signs of scale buildup. Inspect the ventless hood paper filter (replace as needed). Test the ventless hood drain for proper drainage and signs of leaking. De-scale as needed.
For yearly maintenance, do the following.
NOTE: Must be performed by a qualified professional.
Replace the steam bypass hose. Inspect and test the humidity control. Inspect all drain hoses and clamps. Inspect all steam water injection lines and clamps for leaks or potential issues. Inspect wiring to heating elements. Re-tighten or secure as needed. Record the
amp draw. Inspect the cleaning system pump and hoses for leaks and proper operation. Inspect and test the proper draining of the oven cavity. Inspect the upper browning valve hose. Inspect the low pressure relief valve and hose. Inspect the convection element seal from the electrical compartment. Inspect the gas heat exchanger seal from the electrical compartment. Inspect the N6 oven temperature probe seal. Inspect the hand shower handle and hose. Check operation of all electrical cooling fans. Test steam injection solenoid. Test condensate solenoid. Check all electrical connections are properly connected and secure to the
boards. Check door hinges and handles. Tighten, secure, or adjust as needed. Check door gaskets for damage and seal. Run the oven in convection mode and test operation. Run the oven in steam mode and test operation. De-scale as needed. For ovens shipped to New Zealand or Australia, inspect the back flow preventer
check valve per AS/NZ3500.1 and AS/NZ3500.2

20

MAINTENANCE
Continued from previous page
Inspect all drain hoses and clamps. Inspect all steam water injection lines and clamps for leaks or potential issues. Inspect wiring to heating elements. Re-tighten or secure as needed. Record the
amp draw. Inspect wiring to the steam element. Re-tighten or secure as needed. Record the
amp draw. Inspect the cleaning system pump and hoses for leaks and proper operation. For ovens shipped to New Zealand or Australia, inspect the back flow preventer
check valve per AS/NZ3500.1 and AS/NZ3500.2 Check operation of all electrical cooling fans. Check all electrical connections are properly connected and secure to the
boards. Check door hinges and handles. Tighten, secure, or adjust as needed. Check door gaskets for damage and seal. Test steam injection solenoid. Test condensate solenoid. Run each chamber in convection mode and test operation. Run each chamber in steam mode and test operation.
21

TROUBLESHOOTING

Error Codes

TROUBLESHOOTING

Code Component E-5 2 – Convection fan

Description Convection fan (upper) under speed

E-5 2 – Convection fan Lower convection fan under speed

E-10 44 – Cavity sensor

Cavity sensor short

E-10 47 – Food probe

Food probe short

E-10 52 – Steam injector Steam injector sensor short

E-10 55 – Tank

Tank sensor short

E-11 44 – Cavity sensor

Cavity sensor open

Troubleshooting steps
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Investigate food probe for damage. Replace if damaged. 2. Power down control using on/off icon. 3. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 4. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

22

TROUBLESHOOTING

Code Component E-11 52 – Steam injector

Description Stem injector sensor open

E-11 55 – Tank

Tank sensor open

E-31 2 – Convection fan (Classic control)

Motor (upper) over temperature

E-31 2 – Convection fan (Classic control)

Lower motor over temperature

E-31 2 – Convection fan Motor VFD (upper) over temperature

E-31 2 – Convection fan Lower motor VFD over temperature

E-31 44 – Cavity sensor

Chamber over temperature

E-31 55 – Tank

Tank sensor over temperature

Troubleshooting steps
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Make sure cooling fan(s) are operating. 2. Make sure exhaust vents are clean and free of debris. 3. Make sure oven clearances are met. 4. Ambient temperature greater than 105°F (41°C).
1. Make sure cooling fan(s) are operating. 2. Make sure exhaust vents are clean and free of debris. 3. Make sure oven clearances are met. 4. Ambient temperature greater than 105°F (41°C).
1. If the oven has experienced an over temperature condition allow the oven to cool down for a minimum of 30 minutes. 2. Press the high limit reset button. 3. Resume cooking operation. If error reappears contact service provider.
1. If the oven has experienced an over temperature condition allow the oven to cool down for a minimum of 30 minutes. 2. Press the high limit reset button. 3. Resume cooking operation. If error reappears contact service provider.

23

Code Component E-31 8 – Control Board

Description Control board too warm

E-31 9 – Interface Board Interface board too warm

E-55 56 – Vent valve

Vent (upper) not open

E-55 56 – Vent valve

Lower vent valve not open

E-62 2 – Convection fan Motor VFD (upper) over current

E-62 2 – Convection fan Lower motor VFD over current

E-66 2 – Convection fan VFD (upper) error

E-66 2 – Convection fan Lower VFD error

TROUBLESHOOTING
Troubleshooting steps
1. Make sure cooling fan(s) are operating. 2. Make sure exhaust vents are clean and free of debris. 3. Make sure oven clearances are met. 4. Ambient temperature greater than 105°F (41°C). 5. Check the door gasket for damage and proper seal.
1. Make sure cooling fan(s) are operating. 2. Make sure exhaust vents are clean and free of debris. 3. Make sure oven clearances are met. 4. Ambient temperature greater than 105°F (41°C). 5. Check the door gasket for damage and proper seal.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

24

TROUBLESHOOTING

Code Component E-78 19 – Voltage sensor

Description Voltage monitor too low

E-78 2 – Convection fan VFD (upper) under voltage

E-78 2 – Convection fan Lower VFD under voltage

E-79 19 – Voltage sensor Voltage monitor too high

E-79 2 – Convection fan VFD (upper) over voltage

E-79 2 – Convection fan Lower VFD over voltage

E-80 2 – Convection fan VFD (upper) memory error

E-80 2 – Convection fan Lower VFD memory error

E-88 1 – Heater

Gas ignition failure (upper)

Troubleshooting steps
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Check to make sure the unit plug is fully seated in the electrical outlet. 2. Reset the main circuit breaker for the oven. If error reappears contact service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or turning off the breaker. 3. Inspect the top of oven for anything blocking the exhaust flue of the oven. 4. Make sure the ventilation hood is turned on and working properly. 5. Make sure the gas line is properly connected to the unit and the gas shut off valve is in the open position. 6. Resume cook operation. If error reappears turn the oven off, shut off the gas supply to the oven and immediately contact service provider.

25

TROUBLESHOOTING

Code Component E-88 1 – Heater
E-90 1 – Heater E-90 1 – Heater E-93 8 – Control Board E-94 10 – Control Board
Communications E-94 2 – Convection fan E-94 2 – Convection fan E-102 59 – Ventless hood

Description

Troubleshooting steps

Lower gas ignition failure

1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or turning off the breaker. 3. Inspect the top of oven for anything blocking the exhaust flue of the oven. 4. Make sure the ventilation hood is turned on and working properly. 5. Make sure the gas line is properly connected to the unit and the gas shut off valve is in the open position. 6. Resume cook operation. If error reappears turn the oven off, shut off the gas supply to the oven and immediately contact service provider.

Gas blower failure (upper)

1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

Lower gas blower failure

1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

State synchronization error between the 1. Clear error by pressing the check mark on

interface board and control board

the display to accept the error.

2. If the error persists contact Alto-Shaam

Technical Support.

Communication error between Interface 1. Power down control using on/off icon.

Board and Control Board

2. Cycle power to the oven either by

unplugging the unit or by turning the main

power switch off and then back on.

3. Resume use of oven. If error reappears

contact a service provider.

VFD (upper) communication error

1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

Lower VFD communication error

1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

Ventless hood filter Fault

1. Check if filters are installed. 2. Check if filters are clogged. 3. Check operation of hood fan.

26

TROUBLESHOOTING

Code Component E-105 6 – Chamber E-109 6 – Chamber
E-606 6 – Chamber
E-999 48 – Personality handler

Description Low water pressure Chamber high limit
Error during cleaning cycle
IB and CB dip switch settings not set correctly

Troubleshooting steps
1. Water supply not connected. 2. Water supply is shut off. 3) Water supply to unit blocked or obstructed (check filter).
1. If the oven has experienced an over temperature condition, allow the oven to cool down for a minimum of 30 minutes. 2. Press the high limit reset button. 3. Resume cooking operation. If error reappears contact service provider.
1. Manually Clean Oven. 2. Manually Rinse Oven. 3. Ensure chemicals removed before use. 4. Resume use of oven. If error repeats contact service provider.
1. Power down control using on/off icon. 2. Cycle power to the oven either by unplugging the unit or by turning the main power switch off and then back on. 3. Resume use of oven. If error reappears contact a service provider.

27

TROUBLESHOOTING
28

TROUBLESHOOTING

· This troubleshooting tree is based on a 7-20 208/240V 3ph oven.
Prodigi: Oven Dead — No Display or Operation

Is electrical power connected to the oven?

No

Yes

Is the voltage correct at the power source?

No

Yes

Is the voltage correct at the main terminal blocks (L1/2/3)?

No

Yes

Is the voltage correct at the line side of the electromagnetic interference (EMI) Filter?

No

Yes

Is the voltage correct at the load side of the EMI Filter?

No

Yes

Is the voltage correct at circuit breaker C/B 20 to L2 on the

No

main terminal block?

Yes

Is the voltage correct at circuit breaker C/B 5 to L1 on the

No

main terminal block?

Yes

Is the voltage correct across L and N terminals

at the DC power supply?

No

Yes

Is there 12 VDC output from the DC power supply?

No

Yes

Is there 12 VDC across the Control Board (CB) connector X4 pins 1-4?

No

Yes

Is there 12 VDC across the interface board (IB) connector J12

pins 1-4?

No

Yes

Locate the back-light connector J3 on the IB. Measure DC

voltage from wires RD to BLK – RD to BLK. Is there 12 VDC

No

across each measurement?

Yes

Check the back-light cable for breaks or pinched wires.

No

Check continuity of the wires. Is the cable in good condition?

Yes

Replace the Display assembly.

Supply electrical power to the oven by turning on the main circuit breaker or plugging the oven in.
Inspect and/or reset the circuit breaker.
Repair or replace the faulty cord, plug, or wiring.
Repair the wiring between the main terminal block and the EMI Filter.
If there is no voltage on the load side of the filter replace the EMI filter.
Reset or replace circuit breaker C/B 20.
Reset or replace circuit breaker C/B 5.
Inspect/Repair the wiring between terminal block TB 33-1 and the power supply terminal L, and between terminal block TB 27-1 and the power supply terminal N. Disconnect power at the main breaker and remove the DC wires from the power supply. Apply power to oven. Measure 12 VDC directly at the output of the power supply. If DC voltage is not present replace the power supply. If there is DC voltage present inspect the DC circuit for shorts.
Repair the wiring between the power supply and the control board (CB) connector X4. Repair the wiring between control board (CB) connector X4 and
IB connector J12.
Replace the Interface Board.
Replace the back-light cable.

29

TROUBLESHOOTING
· This troubleshooting tree is based on a 7-20 208/240V 3ph oven.
Prodigi: Electric, No Steam Production — Steam at 212°F (100°C)
**Steam below 212°F (100°C) B5 will cycle off the Y1 solenoid at 10°F below the set temperature (example: Set Temp 200°F, B5 cycles Y1 off at 190°F)

Is the convection fan motor spinning? Yes
Is the B5 probe below set point 204° F/ 96° C ? (In the service screen)
Yes

No

See “Convection Motor Is Not Spinning”.

The oven will not call for steam production until the B5

No

probe is below set point. If the B5 probe is reading incorrectly,

test the probe and replace it if necessary.

Is the K41 convection element contactor being energized?

Measure the AC voltage across the coil of the K41 convection

element contactor. If voltage is present, replace faulty

contactor. If voltage is not present, determine which leg of AC

No

voltage is missing and correct.

· A1 is L1 and it is supplied to K41 from the RB connector X10 pin 1.

· A2 is L2 and is supplied to K41 from the N7 high limit terminal 11.

Yes

Is there AC voltage being supplied to terminals 2-4-6 on the K41 contactor?

No

Yes

Is there AC voltage across terminals 1-3-5 on the K41 contactor?

No

Yes

Is there AC voltage across the element loops at the convection elements?

No

Yes

Are all element loops drawing current?

No

Yes

Is the Y1 solenoid valve being energized?

No

Repair the wiring issue between the main terminal blocks TB1-1, TB6-1, TB11-1 and the K41 contactor.
Replace faulty contactor(s)
Repair the wiring between contactors and the elements.
Replace the faulty element assembly.
Determine which line is missing at the solenoid: · A1 is L1 supplied from Relay Board (RB) connector X05 pin 4. · A2 is supplied from terminal block TB 27-B1.

Yes

Is the solenoid valve opening?

No

Yes

Is water being injected into the fan wheel inside the oven?

No

Yes Oven will begin producing steam in 2-5 minutes.

Replace faulty solenoid. Correct the obstruction between the solenoid valve and
the injection pipe

30

TROUBLESHOOTING
Prodigi, Gas: No Steam Production — Steam at 212°F (100°C)
**Steam below 212°F (100°C) B5 will cycle off the Y1 solenoid at 10°F below the set temperature (example: Set Temp 200°F, B5 cycles Y1 off at 190°F)

Is the convection fan motor spinning? Yes
Is the Steam Bypass Temperature Probe B5 below the set point? 204° F/ 96° C (In the service screen) Yes Is the burner igniting? Yes
Is the Y1 Solenoid valve being energized?
Yes Is the Y1 solenoid valve opening?
Yes Is water being injected into the fan wheel inside the
oven? Yes
The oven will begin producing steam in 2 to 5 minutes.

No

See “Convection Motor Is Not Spinning”.

The oven will not call for steam production until the

No

B5 probe is below the set point. If the B5 probe is reading

incorrectly, test the probe and replace if necessary.

No

See “No Combustion On A Call For Heat”.

Determine which AC line is missing at the Y1 solenoid valve.

No

· A1 is L1 supplied from the Relay Board (RB) connector X5 pin 4.

· A2 is L2 supplied from terminal block TB27-B1.

No

Replace the faulty solenoid valve.

No

Remove the obstruction between the Y1 solenoid valve and the injection pipe

31

TROUBLESHOOTING

Prodigi: No Rinse Water During the Cleaning Cycle

During the Rinse Cycle, is the Y3 solenoid being energized?
Yes Is the Y3 solenoid opening?
Yes Is water present at the injection pipe in the oven?
Yes Is the injection pipe clear of debris?
Yes The rinse water plumbing will be working properly.

Determine which leg of the power is missing at the Y3

solenoid and correct.

No

· A1 is L1 supplied from the Relay Board (RB) connector X5 pin 2.

· A2 is L2 supplied from terminal block TB27-B3.

No

Replace the faulty solenoid.

No

Clean or repair water manifold and/or hose from manifold to the injection pipe.

No

Repair or replace the injection pipe as needed.

32

TROUBLESHOOTING

Prodigi: Cleaning System is Not Operating

Is the Y4 cleaning pump being energized at its timed cycle? No

Yes

Is the Y4 cleaning pump running?

No

Yes

Is there water at the pump inlet?

No

Yes

Is there water at the water manifold inlet from the Y4 pump?

No

Yes

Is there water at the injection pipe?

No

Yes

Is the injection pipe clear of debris?

No

Yes

The cleaning pump and plumbing circuit will be working properly.

Determine which leg of the power is missing at the Y4 wash pump and correct.
· A1 is L1 from the Relay Board (RB) connector X5 pin 1. · A2 is L2 supplied from terminal block TB 27-B4.
Replace the faulty cleaning pump.
Make sure the condensate pan clean out hose is unplugged and that the Y2 cooling water solenoid is operating properly.
Inspect or replace the hose between Y4 cleaning pump and the water manifold. If the hose is okay, replace the faulty Y4
cleaning pump.
Remove the obstruction between the water manifold and the injection pipe.
Clean or replace the injection pipe as needed.

33

TROUBLESHOOTING

Prodigi Classic ONLY: Error Code E94
NOTE: The computerarea network(CAN ) cable is connected to the control board (CB)atconnectorX6 and the interface board (IB) at connector J19.

Disconnect both ends of the CAN cable, inspect the terminals and firmly reattach the CAN cable.

Still getting an E94 error?

No

Yes

Replace the CAN cable.

Still getting an E94 error?

No

Yes Replace the CB.

Still getting an E94 error?

No

Yes

Replace the IB.

Still getting an E94 error?

No

Yes

Contact the Alto-Shaam Technical Service team.

The oven will operate properly.
The oven will operate properly.
The oven will operate properly.
The oven will operate properly.

34

TROUBLESHOOTING
Prodigi Classic: Fan Motor Over Temp E31
Is the convection fan spinning? Yes
Is the motor high-limit wiring to the Control Board (CB) connector X7 pins 1 & 2 secure?
Yes Check fan wheel and make sure the motor spins freely. Does the motor spin freely?
Yes Replace the CB?

No

See “Convection Motor Is Not Spinning”.

No

Secure the wiring and retest.

Remove any obstruction causing the fan wheel

No

to lock up. Replace the motor.

35

77790 6.10,10.10,7.20 380-415V 3Ph
77791 6.10 208-240V 1Ph
77792 6.10, 10.10, 7.20 208-240V 3Ph
77794 6.10,10.10,7.20 440-480V 3Ph
77796 10.20 208-240V 3Ph
77797 10.20 380-415V 3Ph

77798 10.20 440-480V 3Ph

77799 xx-xx xx-xx xx-xx Ph

INTENTIONALLY BLANK

77800 xx-xx xx-xx xx-xx Ph

INTENTIONALLY BLANK

36

SCHEMATICS

77801
xx-xx xx-xx xx-xx Ph

INTENTIONALLY BLANK

77802 20.20 208-240V 3Ph
77803 20.20 380-415V 3Ph

77804
20.20 440-480V 3Ph

77807 6.10,10.10,7.20,10.20 120V NG/LP
77808 6.10,10.10,7.20,10.20 208-240V / 380-415V GAS
77809 20.10,20.20 120V GAS

77812 20.10,20.20 208-240V GAS

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Phone +1-905-660-6781

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Phone +971-4-321-9712
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Phone +1 954-655-5727
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