Rational iCombi Pro Troubleshooting Manual page 8

Error tree: Thermocouple is faulty
Service error: 20
Unit type: iCombi
Service error 20.1
Thermocouple cabinet B1 is faulty.
Note: There is also a second B9 cooking chamber
sensor for floor units, to which the Fault Tree also
applies.
Service error 20.2
Thermocouple control valve B2 is faulty.
ICP 6 2/3 uses this sensor, referred to as B10, for
the motor temperature on the shaft.
Service error 20.4
Thermocouple humidity B4 is faulty.
Service error 20.8
Thermocouple steam generator B5 is faulty.
Service error: 20
Cooking not possible
Cooking possible
Unit in emergency operation
Cooking possible
Unit in emergency operation
Only hot air possible
Unit in emergency operation
1
Replace the sensor, reset maximum value
B1 in diagnosis
Replace the sensor, reset maximum value
B2 in diagnosis
Replace the sensor, reset maximum value
B4 in diagnosis
Replace the sensor, reset maximum value
B5 in diagnosis
V03 · 05/2021 · RTS/Shof · en-GB