Alto-Shaam MN-29245 manual E21, E22, E23, E24, E25, E26, E27, E34, E35, E36, E40, E41

		I NST ALLATIO		N
ERR O R COD ES
Error	Dis play Show s	Whe n d oes t he error		Possible reason
Code		occur?
E20	HACCP Only - B11 Core	Single point core temperature	— Clean Probe Receptacle Pins with sand paper.
	Temperature Probe Single	probe defect or disconnected	— B11 Single Point Core Temperature probe with quick
	Point Fault		connect, defective.
	Error E20 is not shown in display.		— B11 Single Point Core Temperature probe wires with
			quick connect, disconnected.
	Instead a probe sign with "?" is
			— B11 Single Point Core Temperature probe receptacle,
	shown as popup window. In case
			defective.
	the customer cooks in time mode
			— B11 Single Point Core Temperature probe receptacle
	during first step and during second
			wires disconnected.
	step switches to probe mode but has
	no probe in place, the error E20 will
	be shown in the error code list and
	HACCP list.
E21	N6 Cavity Probe Fault	Cavity temperature probe defect	— N6 Oven Cavity Temperature probe defective.
		or disconnected	— N6 Oven Cavity Temperature connection problem.
E22	B10 Core Temperature Probe	Multipoint core temperature probe	— B10 Multipoint Core Temperature probe defective.
	Multipoint Fault	defect or disconnected	— B10 Multipoint Core Temperature probe connection
			problem disconnected.
E23	B4 Boiler Probe Fault	Boiler temperature probe defect	— B4 Boiler temperature probe defective.
		or disconnected	— B4 probe wires connection problem.
E24	B5 Bypass Probe Fault	Bypass steam temperature probe	— B5 Bypass steam temperature probe defective.
		defect or disconnected	— B5 Bypass steam temperature connection problem.
E25	B3 Condensor Probe Fault	Condensor water temperature	— B3 Condensor temperature probe defective.
		probe defect or disconnected	— B3 Condensor probe connection problem.
E26	N8 Boiler Safety Temperature	Steam generator heating element	— N8 Boiler temperature probe defective.
	Probe Fault	protection probe defect or	— N8 probe connection problem.
		disconnected
E27	Boiler Element Temperature	Excess steam generator safety	— Scale build up inside steam generator.
	High	probe	— Defective water level probe.
			— Water level probe connection failure.
			— N8 boiler temperature probe defective.
			— N8 probe connection problem.
			— Steam element contactor(s) stuck closed.
E34	Steam Generator Drain Pump	Water level in steam generator	— Scale build up inside the steam generator drain pump.
	Fault	does not drop during cleaning	— Generator drain pump is faulty
		program	— Connection issue at drain pump.
			— No output to pump from relay board.
E35	Vent not closed	Browning valve does not close	— Alignment issue between motor cam and vent motor
		completely	safety switch (micro switch).
			— Fault vent valve (motor).
			— Fault vent valve safety switch (micro switch).
			— Wiring or connection problem.
E36	Steam Temperature High	Oven cavity temperature is too	— Water supply is shut off.
		high when operating in a steam	— Low water pressure.
		mode or cleaning program	— Water injection pipe obstructed.
			— Water flow valve plugged or defective.
			— Dual solenoid valve Y-1 obstructed or defective.
			— No output to solenoid valve form relay board.
E40	B3 Condensor Probe Short to	Condensor water temperature	— B3 condensor temperature probe defective.
	Frame	probe short to ground	— Probe connection problem.
E41	B4 Boiler Probe Short to	Boiler protection temperature	— B4 boiler temperature probe defective.
	Frame	probe short to ground	— Probe connection problem.

COMBITOUCH™ ES SERIES • ELECTRIC INSTALLATION MANUAL • 29 .

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