Alto-Shaam 750-SK

TROUBLESHOOTING
Del uxe Control C ook & Ho l d ▪ Opera tor’s Manual ▪ MN- 4 6708 ▪ Re v 1 ▪ 11/20
90
E-31 Unit over temperature
Cavity sensor over
temperature too long. Halts
active program if temperature
exceeds 375°F / 190°C.
1. Cooling Fan not operating
2. Installation clearance
requirements not met.
E-30 Unit under temperature
Cavity sensor under
temperature too long
Troubleshoot heating
elements.
E-53
ADC board level error (32°F temperature
reference out of range)
Control Error - Impedes all
operation.
Requires power cycle to reset.
E-66 Processor reset Electrical noise.
E-79 Over-voltage Supply voltage incorrect Correct the supply voltage.
E-78 Under-voltage Supply voltage incorrect Correct the supply voltage.
E-80 EEPROM RAM reset
Display Error - Known Values
loaded.
Requires power cycle to reset.
E-83 EEPROM not responding
Display Error - Known Values
loaded.
Requires power cycle to reset.
E-84 EEPROM user options reset
Display Error - Known Values
loaded.
Requires power cycle to reset.
E-109 High Limit
Cavity high limit open. Halts
any active program
Any oven experiencing this
error should be investigated
by an authorized Alto-Shaam
service provider.
E-b0 PCB shorted
PCB board temperature sensor
is short-circuited.
Board failure.
E-b1 PCB open
PCB board temperature sensor
is open-circuit.
Board failure.
E-b2 PCB over temperature
PCB board temperature sensor
over 70° C.
1. Cooling Fan not operating
2. Installation clearance
requirements not met.
E-bC Bootloader EEPROM RAM reset Bootloader chip error. Requires power cycle to reset.
EFAn Check fans
Insufficent internal cooling
airflow.
1. Cooling Fan not operating
2. Installation clearance
requirements not met.
UE01 USB error USB not present Insert USB, USB cable faulty.
UE02 No such file on USB Missing File on USB
Load the correct file onto the
USB
E-10 Short Circuit
Short circuit detected on
sensor wires
1. Sensor connection
2. Sensor
3. Control Board
E-11 Open Circuit
Open circuit detected on
sensor wires
1. Sensor connection
2. Sensor
3. Control Board
DELUXE CONTROL
Code Description Cause Remedy