Alto-Shaam 750-TH-II manual To test probe and air sensor, Error Code Description Possible cause

Page 19

Serv ice

TROUBLE SHOOTING CHECKLIST

	Error
	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.
	E-11	cavity air sensor open	See sensor test instructions below.
			See sensor test instructions below.
	E-20	product probe is shorted	Product probe reading < 5°F. Verify sensor integrity.
	E-20	Oven will cook in time only	See sensor test instructions below.
		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.
	E-21	Oven will cook in time only	See sensor test instructions below.
		Oven will cook in time only	See sensor test instructions below.
	E-30	under temperature	Unit has not reached set-point 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-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.
		configuration connector	Refer to wiring diagram for the particular model and ensure dip switches on
	E-70	configuration connector	the control match the settings called out on the WD. If the dip switch settings
	E-70	error (dIp switch)
		error (dIp switch)	are correct according to the print replace the control.
			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-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.

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.

TH-IIseries • installation/operation/service manual - pg. 17

Image 19

Contents

Installation Sanitation P a c K I N G L I V E r yN G E r SAFETy prOcEdurES PrEcAuTIONSMinimum clearance Requirements Site InstallationTH-II 1000-TH/II 5010948 5010371 50097674459 127mm 5004862STAcKING INSTrucTIONS Stacking ConfigurationsAppliance must be secured To building structure RISK of ELEcTrIc SHOcKCasters must be a maximum height of 6 152mm Drip tray installation instructions Ectrical Connection Hard wired models300F 149C SEVErE dAMAGE Or ELEcTrIcAL HAZArd COuLd rESuLT200 to 325F 94 to 160C 60 to 205F 16 to 96C 16 to 93C. If the unit is equipped with vents, close General Holding GuidelineAcid muriatic acid on stainless steel surfaces CLEANING AgentsCLEANING MATErIALS PrOTEcTING Stainless Steel SurFAcESClean the Door Vents Sa n i t a t i o n To test probe and air sensor Error Code Description Possible causeTH-II shown ERV ICE 500-TH/III 230V shown Electronic Components parts listCable heating service kit #4880 #4881 Cable Heating Service KitSPage   Page  Voltage Purchased From Transportation Damage and Claims

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