Rational iCombi Pro Troubleshooting Manual page 55

Error tree: Unit does not heat up
Service error: -
Unit type: iCombi
Check if the unit is configured in Show mode
Check if the door sensor S3 shows "1" when the door is closed
b. Sensor fault
c. eSTL electr. Circuit faulty
Replace eSTL
The unit heats up in both modes
Service error: -
The unit is running, but steam and hot air are not working.
Yes
No
Open the left side panel of the unit and
check if the eSTL
a. Temperature too high
b. Sensor fault
c. Electronic eSTL circuit faulty
Check that the main contactor is closed.
If all of the aforementioned conditions are OK, check the
processes (steam-hot air) in the manual process
Yes
Check if the SSRs are supplied by the 12VDC. (Connection A10 - X24)
The one or several SSRs are
If the hot air and/or steam heating elements are supplied with
voltage but cannot be heated, they are damaged. Please replace.
1
Switch off Show mode
S3 could be damaged or incorrectly installed
a. Temperature too high. Reset the eSTL
Check if it is damaged or receives no
voltage
No
The unit does not heat up
Yes No
The I/O board is
damaged.
damaged. Replace this
Replace SSR.
V03 · 04/2021 · RTS/Awei · en-GB