Alto-Shaam 500-1D Installation Operation & Maintenance page 19

Code Description
E-10 Cavity air sensor shorted
E-11 Cavity air sensor open
Product probe is shorted
E-20
Oven will cook in time only
Product probe is open
E-21
Oven will cook in time only
E-30 Under temperature
E-31 Over temperature
Safety switch open
E-32
(Aux hi-limit switch)
E-38 Internal software error
E-39 Sensor error
E-50 Temp. measurement error
E-51 Temp. measurement error
E-60 Real time clock error
E-61 Real time clock error
E-64 Clock is not oscillating
Configuration connector error
E-70
(DIP switch)
E-78 Voltage low
E-79 Voltage high
E-80 EEPROM Error
E-81 EEPROM Error
E-82 EEPROM Error
E-83 EEPROM Error
E-85 EEPROM Error
E-86 EEPROM Error
E-87 EEPROM Error
E-88 EEPROM Error
E-90 Button stuck
E-91 Input failure
E-dS Datakey error
E-dT Datakey error
E-dU Datakey unplugged
dLto Datalogger has timed out
dLSD Micro SD card not plugged in
NOTE: If in doubt, always cycle the power to the control and contact factory if the problem persists .
Possible Cause s
Cavity air sensor reading < 5°F (-15°C) . Verify sensor integrity .
Cavity air sensor reading > 517°F (269°C) . Verify sensor integrity .
Product probe reading < 5°F (-15°C) . Verify sensor integrity .
Product Probe reading > 517°F (269°C) . Verify sensor integrity .
Unit has been more than 25°F (14°C) below set point for longer than 90 minutes .
Unit has been more than 60°F (33°C) above the maximum set-point for longer than 3
minutes . Holding Cabinets with this error code are more than 145°F (81°C) above the
maximum set-point .
Contact factory .
Contact factory .
Contact factory .
Contact factory .
Contact factory .
Data set to factory default . Ensure that date and time are correct if applicable .
Contact factory .
Contact factory .
Refer to wiring diagram for the particular model and ensure dip switches on the
control match the settings called out on the WD . If the dip switch settings are correct
according to the print replace the control .
Voltage below 90 VAC on a 125 VAC unit, or below 190 VAC on a 208-240 VAC unit .
Correct voltage .
Voltage over 135 VAC on a 125 VAC unit, or over 250 VAC on a 208-240 VAC unit .
Correct voltage .
Ensure that all temperatures and times are properly set .
Contact factory if problem persists .
Contact factory .
Contact factory .
Contact factory .
All timers, if previously on, are now off . Possible bad EEPROM .
Stored HACCP memory corrupted . HACCP Address reset to 1 . Possible bad EEPROM .
Contact factory if problem persists .
Stored offsets corrupted . Offsets reset to 0 . Control may need a recalibration .
Possible bad EEPROM . Contact factory if problem persists .
All timer set-points are reset to 1 minute . Timers, if previously on, are now off .
Possible bad EEPROM .
A button has been held down for > 60 seconds . Adjust control . Error will reset when
the problem has been resolved .
Contact factory .
Datakey digital signature incompatible . Cycle power, and install compatible Datakey
if error persists .
Datakey incompatible with control . Install compatible Datakey .
Install Datakey and cycle power to control to clear error .
Cycle power . Contact factory if error persists .
Plug in SD card and cycle power . Contact factory if error persists .
MN-29742 • Rev 9 • 12/17 • Drawer Warmers
Troubleshooting
19