Rational iCombi Classic Troubleshooting

1
Service error: 28
V03 · 05/2021 · RTS/Shof · en-GB
Error tree: Thermocouples B5 or B1 are too hot
Service error: 28
Unit type: iCombi
Service error 28.1
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 28.2
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
Check the SSR.
Yes
Yes
Yes

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