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COMBITOUCH
®
ESG SERIES • GAS INSTALLATION MANUAL • MN-29246 • 27.
INSTALLATION
This section is provided for the assistance of qualified technicians only and is not intended for use by
untrained or unauthorized service personnel. If your Alto-Shaam
®
unit is not operating properly, check the
following before calling your Authorized Alto-Shaam Service Agent:
☛ Check that unit is receiving power. Circuit breaker turned on?
Do not attempt to repair or service the oven beyond this point. Contact Alto-Shaam for the nearest
authorized service agent. Repairs made by any other service agents without prior authorization by
Alto-Shaam will void the warranty on the unit.
When the oven malfunctions, an error code will appear in the display.
PRESS THE START ICON TO ACKNOWLEDGE THE ERROR.
The icons that begin to flash represent operational modes that are still usable.
When the oven fault is corrected, the Combitherm will return to normal operation.
Error
Code
Error Call Out in Display Description of Error Possible Cause
E01
Low Water Boiler Low water level in boiler — Water supply is shut off.
— Low water pressure.
— Generator drain cap missing or loose.
— Generator drain pump is not sealing.
— Generator drain pump elbow leaking.
— Faulty or scaled water level probe.
— Faulty or plugged dual solenoid valve assembly.
— Wiring or connection issue.
— No output to dual solenoid from relay board.
— Relay board, high voltage is not operating.
E02
Control Temperature High Relay board surface
temperature too high
— Wiring or connection issue.
— Cooling fan on Relay board assembly is
not operating.
— Cooling Fan on display board is not operating.
— Main Cooling fan is not operating.
— Cooling Fan on motor drive is not operating.
— Unit is less than 20” from a heat producing source
on its left hand side.
E03
Fan Motor Error Fan motor does not work — Exhaust hood is not operating properly.
— Check LED fl ashes on the Motor Control.
— See Motor Control Error Code list.
— Connection Issue on Hall Effect sensor.
— Fan wheel is not operating.
— Hall sensor does not detect motor rotation.
E04
Fan Motor 2 Error Lower fan motor on 20•20
does not work
— Exhaust hood is not operating properly.
— Check LED fl ashes on the Motor Control.
— See Motor Control Error Code list.
— Connection Issue on Hall Effect sensor.
— Fan wheel is not operating.
— Hall sensor does not detect motor rotation.
E11
Convection Temperature
High
Excess oven temperature Convection Mode & Combi Mode:
— Convection Oven contactor(s) stuck closed.
— N6 Oven Cavity Temperature probe defective.
— N6 Cavity Probe connection problem.
— Relay board, high voltage is not operating.
— Wiring or connection issue.
Combi Mode Only:
— Insuffi cient water supply into oven for
steam production.
ERROR CODES
continued on next page
(page 31).
(page 31).