98
8 System Operation
Fault
Code
No.
Restart according to Description
TRD EN676
363 1 1 permissible O
2
value was fallen below
Initially, the time from parameter P904 "O
2
trim active after ignition in seconds" runs
out before the fault is permitted. After that, the monitoring time from P966 starts.
Also works without an active O
2
controller
(from 5.4):
After ignition, the monitoring time from P966 starts immediately.
370 0 0 Internal communication between the processors faulty
H/Ü Different values in the main and monitoring processors. Reimport the curves and/or
parameter set.
A sporadic occurrence of fault H370 is due to EMC interference immunity of the wir-
ing or environment.
If the fault persists, exchange the processor pc board.
371 0 0 Output for internal firing rate faulty
Ü
372 0 0 Deviation of the firing rate value between the main processor and the moni-
toring processor is too high.
Ü Fault during an internal self-test.
Reset the fault; switch the mains voltage off and on again if necessary.
Check all fuses in the device.
If fault messages are constantly appearing one after the other <Symbol For-
mat="Symbol"> </Symbol> exchange the device or respective card.
381 0 0 Deviation between main processor and monitoring processor too great: cor-
rection channel 1
Ü Fault during an internal self-test.
Reset the fault; switch the mains voltage off and on again if necessary.
Check all fuses in the device.
If fault messages are constantly appearing one after the other exchange the
device or the respective card.
382 0 0 Deviation between main processor and monitoring processor too great: cor-
rection channel 2
Ü Fault during an internal self-test.
Reset the fault; switch the mains voltage off and on again if necessary.
Check all fuses in the device.
If fault messages are constantly appearing one after the other <Symbol For-
mat="Symbol"></Symbol> exchange the device or the respective card.
391 0 0 Curves sentence does not fit to the chosen fuel.
Ü Fault during an internal self-test.
Reset the fault; switch the mains voltage off and on again if pertinent.
Check all fuses in the device.
At the curve set selection by BUS, terminal 75 is missing for plausibility check, or
rather terminal 75 can be seen at oil curve.
If fault messages are constantly appearing one after the other <Symbol For-
mat="Symbol"> </Symbol> exchange the device or the respective card.
392 0 0 Remote not responding (time-out)
H
393 0 0 Remote shut down triggered.
H
394 0 0 BURNER-ON/OFF Remote signal missing.
400 0 0 Different point number at programming
Ü Re-enter the curve.
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