Alto-Shaam 1000-TH/III, 500-TH/III, 750-TH/III Troubleshooting, Code Description Possible cause

			Se r v ice
troubleshooting
	code	description	possible cause
	E-10	cavity air sensor shorted	Cavity air sensor reading < 5°F. Verify sensor integrity.
			See sensor test instructions below.
	E-11	cavity air sensor open	Cavity air sensor reading > 517°F. Verify sensor integrity.
			See sensor test instructions below.
	E-20	product probe is shorted	Product probe reading < 5°F. Verify sensor integrity.
		Oven will cook in time only	See sensor test instructions below.
	E-21	product probe is open	Product Probe reading > 517°F. Verify sensor integrity.
		Oven will cook in time only	See sensor test instructions below.
	E-30	Under temperature	Unit has not reached (set-point - 25°F) for more than 90 minutes.
			Unit has been higher than 25°F above the maximum cavity set-point for
	E-31	Over temperature	more than 2 minutes. Note: Holding Cabinets with this error code are
			more than 145°F higher than the maximum set-point.
	E-32	Safety switch open	Contact factory.
		(Aux hi-limit switch)
	E-38	Internal software error	Contact factory.
	E-39	Sensor error	Contact factory.
	E-50	Temp. measurement error	Contact factory.
	E-51	Temp. measurement error	Contact factory.
	E-60	Real time clock error	Data set to factory default. Ensure that date and time are correct if applicable.
	E-61	Real time clock error	Contact factory.
	E-64	clock is not oscillating	Contact factory.
		configuration connector	Refer to wiring diagram for the particular model and ensure dip switches on
	E-70		the control match the settings called out on the WD. If the dip switch settings
		error (dIp switch)
			are correct according to the print replace the control.
	E-78	Voltage low	Voltage below 90 VAC on a 125 VAC unit, or below 190 VAC on a
			208-240 VAC unit. Correct voltage.
	E-79	Voltage high	Voltage over 135 VAC on a 125 VAC unit, or over 250 VAC on a
			208-240 VAC unit. Correct voltage.
	E-80	EEpROM Error	Ensure that all temperatures and times are properly set.
			Contact factory if problem persists.
	E-81	EEpROM Error	Contact factory.
	E-82	EEpROM Error	Contact factory.
	E-83	EEpROM Error	Contact factory.
	E-85	EEpROM Error	All timers, if previously on, are now off. Possible bad EEPROM.
	E-86	EEpROM Error	Stored HACCP memory corrupted. HACCP Address reset to 1. Possible bad
			EEPROM. Contact factory if problem persists.
	E-87	EEpROM Error	Stored offsets corrupted. Offsets reset to 0. Control may need a recalibration.
			Possible bad EEPROM. Contact factory if problem persists.
	E-88	EEpROM Error	All timer set-points are reset to 1 minute. Timers, if previously on, are now
			off. Possible bad EEPROM.
	E-90	Button stuck	A button has been held down for >60 seconds. Adjust control. Error will
			reset when the problem has been resolved.
	E-91	Input failure	Contact factory.
	E-dS	datakey error	Datakey digital signature incompatible. Cycle power, and install compatible
			Datakey if error persists.
	E-dT	datakey error	Datakey incompatible with control. Install compatible Datakey.
	E-dU	datakey unplugged	Install Datakey and cycle power to control to clear error.
	dLto	datalogger has timed out	Cycle power. Contact factory if error persists.
	dLSd	Micro Sd card not plugged in	Plug in SD card and cycle power. Contact factory if error persists.

Note: If in doubt, always cycle the power to the control and contact factory if the problem persists.

To test probe and air sensor:

Test probe and air sensor by placing sensor in ice water bath and using an ohmmeter set on the ohm scale. The reading should be 100 ohms resistance. If it is more than 2 ohms higher or lower, sensor needs to be replaced.

pg. 28 MN-29758 (Rev. 4) • TH/III & SK/III installation/operation/service manual