Rational iCombi Pro Troubleshooting Manual page 50

Error tree: Functional test P1
Service error: -
Unit type: iCombi
Basic requirements: The temperature sensor cooking cabinet B1 (<40 °C), thermocouple control valve B2 (<65 °C) and thermocoup le humidity B4 (<40°)
It is recommended that the steam generator is rinsed to enable sufficient cooling of the components. The following table shows examples of different
Measure the voltage directly on the I/O board at X1 with the voltage
Service error: -
unit types: 600m above sea level. Tip: The values ​ ​ m ay vary depending on the altitude and humidity.
Unit model Unit model
Unit switched on and cold (offset) Unit switched on and cold (offset)
Cold and dry below 40 °C (max. motor speed) Cold and dry below 40 °C (max. motor speed)
Steam operating mode at boiling point Steam operating mode at boiling point
Check the voltage values on the display
Alternative test:
measuring device.
The displayed P1 value should be within the range of the table values.
When the steam temperature is reached, the P1 value must drop to the value shown in the table.
Value for P1 is OK
End
6 2/3 6 2/3
0.5 V 0.5 V
2.1 – 2.4 V 2.1 – 2.4 V
1.4 – 1.6 V 1.4 – 1.6 V
Set steam to boiling point and time
Activate data window
Closing the cooking cabinet door
Check the procedure for service error 37
1
6 1/1 6 1/1 10 1/1 10 1/1
0.5 V 0.5 V 0.5 V 0.5 V
1.8 – 1.9 V 1.8 – 1.9 V 2.4 – 2.6 V 2.4 – 2.6 V
1.2 – 1.8 V 1.2 – 1.8 V 1.2 – 1.9 V 1.2 – 1.9 V
If the humidity control P1 is OK
V03 · 04/2021 · RTS/Awei · en-GB