Rational iCombi Pro Troubleshooting Manual page 10

Error tree: Thermocouples B5 or B1 are too hot
Service error: 28
Unit type: iCombi
Thermocouple B5 is over 170 °C
The heating element steam is calcified or the steam generator is too hot
Check maximum value B5 in diagnosis
Maximum value B5 over 120 °C
Check calcification in the steam generator, descale the steam generator
Reset maximum value B5 in diagnosis
Service error: 28
Service error 28.1
Yes
Yes
Thermocouple B1 is over 350 °C
Heating element in the cooking cabinet calcified or too hot.
Check maximum value B1 in diagnosis
Maximum value B1 over 350 °C
1
Service error 28.2
Yes
Check the SSR.
V03 · 05/2021 · RTS/Shof · en-GB