MN-35949 • Rev 04 • 06/16 • Combitherm® CT PROformance™ Series • Technical Service Manual • 59
Error Codes
Error
Code
Error Call Out in Display Description of Error Possible Cause(s)
E105 No or Low Water Pressure Water pressure switch not
activated.
— Water supply not connected.
— Water supply is shut off .
— Water supply to unit blocked or obstructed
— Faulty or miswired pressure switch
E106 Boiler Drain Pump Fault Hall eff ect or rotational sensor is
not sending a signal to the relay
board
— Drain pump motor not running or defective.
— Hall eff ect sensor broken or incorrectly wired.
— Motor improperly wired.
E108 Cooling Fan Failure If the temperature on the control
board (relay board) is greater
than 140ºF (60ºC) and less than
176ºF (80ºC). (See error code
E02)
— Cooling fan damaged.
— Cooling fan blocked or blades have been kept from rotating.
— Incoming air temperature exceeds 100°F (38°C).
— Air inlet has become blocked.
E109 High Limit Switch
NOTE: Any oven experiencing
this error should be
investigated by an authorized
Alto-Shaam service provider.
The High Limit Switch input to
the CB (N7) is “open”
— Unit has experienced an over heat condition.
— Convection element contactors stuck closed.
— Failed Y1 solenoid.
— Obstruction between Y1 solenoid and injection pipe.
— Improperly connected drain.
— Condensate pan clean out not closed.
— Improperly wired high limit switch at the switch or at the
CB.
— Defective high limit switch.
E200 The SD card has been detected
to be larger than 2GB in size.
The SD card inserted is larger
than 2GB in size.
— SD card is larger than 2GB in size. Contact service to order
replacement SD card.
E210 VFD Under Voltage VFD has detected an under-
voltage situation.
— Possible VFD failure.
E211 VFD Over Voltage VFD has detected an over-voltage
situation.
— Possible VFD failure.
E212 VFD Overheating VFD has detected an overheat
situation.
— Unit has experienced an over heat condition.
— Defective high limit switch.
— Defective cooling fans.
— Possible VFD failure.
E213 Motor Over Current Motor over current detected. — Blocked fan wheel.
— Possible VFD failure.
E214 VFD Current Peak VFD current peak detected. — Possible VFD failure.
E215 VFD EEPROM Error VFD EEPROM error detected. — Possible VFD failure.
E216 VFD Over Current VFD over current detected. — Possible VFD failure.
E217 VFD Short Circuit VFD Short Circuit detected. — Possible VFD failure.
E218 VFD Voltage Error VFD voltage does not correspond
to jumper settings.
— VFD voltage jumper is not correct.
— Possible VFD failure.
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