Thermo E 200 / 320 5 Troubleshooting and error correction
505
5.4 Error symptoms during functional
tests with malfunction code output
5.4.1 Error symptom "No start within safety
period"
If due to a malfunction the heater unsuccessfully
attempted to start eight times in a row, it will be inter-
locked.
No further start attempts will be tried.
The heater interlock overrides the standard malfunc-
tion interlock.
The procedure for releasing the heater interlock can be
found in point 4.5.1.
The "No start within safety period" error symptom does
not always indicate that no ignition took place.
This symptom occurs as well, if the heater fails to enter
heating operation (heating or auxiliary heating state) after
successful ignition, e.g. in case the fuel supply is inter-
rupted.
5.4.2 Error symptom "Flame interruption"
If due to a malfunction flame interruption occurs during
heating operation five times in a row, the heater will be
interlocked.
No further start attempts will be tried.
The heater interlock overrides the standard malfunction
interlock.
NOTE
After above mentioned error symptoms occur, trou-
bleshooting according to page 506 is recommended.
The procedure for a heater interlock release is outlined in
point 4.5.1.
To Next Page
Loading...
