TROUBLESHOOTING
3-7
Model 810, 812, 820, 822, 828 Series
Troubleshooting
3
Error Messages
Zone IDs: T-F = Top Front, T-R = Top Rear, B-F = Bottom Front, B-M = Bottom Middle, B-R = Bottom Rear
Table 3-2
TOO HOT
This error occurs when the temperature of any zone is
79°F (43.9°C) above set point. The temperature icon for
the corresponding zone will turn red. If a Cook cycle is in
progress, it will not be interrupted. The error message will
display at the end of the Cook cycle, and another cycle
cannot be started.
TOO COOL
This error occurs when the temperature of any zone is
39°F (21.7°C) below set point. If a Cook cycle is in
progress, it will not be interrupted. The error message will
display at the end of the Cook cycle, and another cycle
cannot be started.
PROBE FAULT
This error occurs when a zone temperature falls below
set point and the control does not detect an increase in
temperature within 4 minutes for that zone. The error
message will flash on the display, and the alarm will
sound.
To troubleshoot, check the following:
•
Check incoming power
•
Check contactor coil voltage
•
Replace wire harness
PROBE OPEN (ZONE ID)
This errors occurs when an open probe condition occurs.
When this happens, the control will turn the heater
associated with the bad probe off. If the open probe
condition goes away, the control will return to the Idle
mode. The “PROBE OPEN” error message may be
canceled by pressing any key on the display. If there is a
“TOP TEMP” probe open condition, flat menu item Cook
cycles may be started, but clam menu item Cook cycles
are not allowed.
To troubleshoot, check the following:
•
Check all thermocouple connections
•
OHM bad thermocouple
•
Swap motor control boards
Old Error Message
New Error Message
PROBE FAULT (ELECTRIC)
CALL SERVICE NO HEAT IN ZONE (X) MAIN POWER OFF & RETRY
PROBE FAULT (GAS)
CALL SERVICE NO HEAT IN ZONE (X) CHECK GAS SUPPLY OK? MAIN
POWER OFF & RETRY
IGNITION FAILURE
IGNITION FAILURE (ZONE ID) CHECK IF GAS SUPPLY IS OK. IF ERROR
PERSISTS, CALL SERVICE-GAS
BLOWER FAILURE
IGNITION TERMINATED (ZONE ID) CHECK IF GAS SUPPLY IS OK. IF ERROR
PERSISTS, CALL SERVICE-GAS
PROBE OPEN
PROBE OPEN (ZONE ID)
PLATEN NOT LATCHED
PLATEN NOT LATCHED. CALL SERVICE-LATCH. IS AN OBJECT STUCK
UNDER THE PLATEN? IF NO, COOK FLAT ITEMS ONLY.
UPPER PLATEN STUCK
UPPER PLATEN STUCK. CALL SERVICE-LATCH. IF THE PLATEN IS OPEN,
COOK FLAT ITEMS ONLY.
HOME SWITCH STUCK ON
HOME SWITCH STUCK ON. CLAM ITEMS BLOCKED. CALL SERVICE
HOME SWITCH NOT SEEN
HOME SWITCH NOT SEEN. CLAM ITEMS BLOCKED. CALL SERVICE.
TOO COOL
TOO COOL (ZONE ID) (BR, BM, BF, TR, TF)
TOO HOT
TOO HOT (ZONE ID) (BR BM, BF, TR, TF)