21
CM
Edition 10-2008
Failure Codes CM
The following error codes are shown to the operator:
For showing information of the cabinet display press core temperature key
Time
display
Cabinet
display
Failure explanation Description / remedy
H2O open Lack of water / open water tap
Change Polarity Phase / Neutral (only gas units)
Reset Gas Flame detection after ignition faulty
external EEPROM Not initialised
Timeout of external
power optimising system
Heating blocked by the extern. energy-
optimising system for longer 2 min.
B1 Interior cabinet sensor Sensor broken
B2 Quenching sensor Sensor broken
B3 Core sensor Sensor broken
B5 Sensor steam generator Sensor broken
Thermocouple on PCB Sensor broken
Poti interior cabinet Defective
Poti timer/core temperature Defective
external EEPROM Defective
Mode switch
After 5 sec switching on the unit, a
cooking mode couldn‘t be identi ed
Fan motor 1 (bottom)
Fan motor 1 (bottom)
Fan motor 2 (top)
Fan motor 2 (top)
St = Status (probably Motor defect)
Co = Communication, (Bus failure)
M4 SC-pump Mal function
Solenoid valve lling Y1
(failure can only occur during the
descaling program)
Mal function
PCB temperature above 85°C (185°F)
Steam generator Temperature B5 above 180°C (356°F)
Steam generator Temperature B5 below -5°C (23°F)
Interior cabinet temp. Temperature B1 above 340°C (644°F)
Free
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