Alto-Shaam CT PROFORMANCE CTP6-10E

MN-35947
•
Rev 15
•
01/18
•
Combitherm® CT PROformance™ and CT Classic Series Installation Manual
•
73
Troubleshooting – Error Codes
ALWAYS check the circuit breaker is turned “ON” and your unit is receiving power BEFORE calling your Authorized Alto-Shaam Service Agent.
When the oven malfunctions, an error code will appear in the display.
Press the Start icon to acknowledge the error.
When the oven error noti cation has been acknowledged, the Combitherm will attempt to return to normal operation.
Error
Code
Error Call Out in Display Description of Error Possible Cause(s)
E01 Low Water Boiler Upper water level probe B1 is not
satisfied within 5 minutes, a er water
solenoid valve Y1 is activated.
– Water supply is shut o .
– Low water pressure.
– Boiler drain cap is missing.
– Boiler drain pump is defective.
– Drain pump elbow leaking.
– Water level probe has calcium build up.
– Double water solenoid valve is defective (Y1).
– Relay board, high voltage is defective.
E02 Control Temperature High Low voltage relay board temperature
higher than
176°F (80°C).
– Check wiring to all components listed below.
– Cooling fan on
relay board assembly is defective.
– Cooling fan on display board assembly is defective.
– Main cooling fan is defective.
– Cooling fan on motor drive is defective.
E03 Fan Motor Error Fan motor does not spin a er 60
seconds, detected by the Hall Sensor.
Error 03 does not appear if error E53 is
detected first.
– Check wiring to all components listed below.
– If LED on motor control flashes, see error codes for motor
control.
– Motor or fan wheel locked.
– Hall sensor does not detect motor rotation.
– Motor Thermo Temperature protection.
– Fan wheel damaged.
E04 Lower Fan Motor Error Lower Fan motor does not spin a er 60
seconds, detected by the Hall Sensor.
Error 04 does not appear if error E54 is
detected first.
– Check wiring to all components mentioned below.
– If LED on motor control flashes, see error codes for motor
control.
– Motor or fan wheel locked.
– Hall sensor does not detect motor rotation.
– Motor Thermo Temperature protection.
– Fan wheel damaged.
E05 VFD Comm Failure When VFD does not respond to a query
on the CAN interface.
– Loss of power to VFD.
– VFD malfunction.
– CAN cable disconnected.
– CAN address not correct on VFD.
E06 Lower VFD Comm Failure When VFD does not respond to a query
on the CAN interface.
– Loss of power to VFD.
– VFD malfunction.
– CAN cable disconnected.
– CAN address not correct on VFD.
E07 Error Received from VFD When VFD is flashing the green light – Refer to VFD error code list and match to number of blinks
on the green LED of VFD.
E08 Error Received from Lower
VFD
When VFD is flashing the green light – Refer to VFD error code list and match to number of blinks
on the green LED of VFD.
NOTICE
This section is provided for the assistance of qualified and trained service technicians only and is not intended for use by untrained or
unauthorized service personnel. 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.
Error Codes