Rational iCombi Classic Troubleshooting

1
Service error: 20
V03 · 05/2021 · RTS/Shof · en-GB
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.
Replace the sensor, reset maximum value
B1 in diagnosis
Cooking not possible
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.
Replace the sensor, reset maximum value
B2 in diagnosis
Cooking possible
Unit in emergency operation
Service error 20.4
Thermocouple humidity B4 is faulty.
Replace the sensor, reset maximum value
B4 in diagnosis
Cooking possible
Unit in emergency operation
Service error 20.8
Thermocouple steam generator B5 is faulty.
Replace the sensor, reset maximum value
B5 in diagnosis
Only hot air possible
Unit in emergency operation

Rational iCombi Classic Specifications

General

Model	iCombi Classic
Material	Stainless steel
Cooking Modes	Convection, Steam
Temperature Range	30°C to 300°C
Capacity	10, 20
Power Supply	400V 3-phase
Power Consumption	Varies by model
Dimensions	Varies by model
Weight	Varies by model
Cooking Levels	10, 20, or 40