101
8 System Operation
Fault
Code
No.
Restart according to Description
TRD EN676
545 0 0 TRIAC selftest : oil valve is currentless
See S500
546 0 0 TRIAC selftest : Ignition transformer is currentless
See S500
547 0 0 TRIAC selftest : ignition valve is currentless
See S500
550 0 0 Oil fuel blocked because a required solenoid valve is not connected
The test current for the TRIAC self-test cannot flow.
551 0 0 Gas fuel blocked because a required solenoid valve is not connected
The test current for the TRIAC self-test cannot flow.
552 0 0 No valve connected? Check fuse F3 and F4
The oil and gas valves are not connected.
600 0 0 Programme check time of sequencer expired.
H/Ü If no ignition takes place after starting within this time (parameter 777) after ’Burner
ON,’ a fault is output.
If the parameter is set to 0, no fault appears.
601 0 0 Leak check fault: gas pressure still applied.
H/Ü
602 0 0 Leak check fault: gas pressure missing.
H/Ü
603 0 0 Vent gas line manually.
H/Ü
604 0 0 Flame signal not arriving in time.
H/Ü
605 >88 3 Oil pressure < min !!!
H
606 1 1 Gas > min appears in oil operation.
H
607 1 1 Ignition position acknowledgement dropping.
H
608 0 0 Boiler safety chain dropping.
H
609 1 1 Gas safety chain dropping.
H
610 >88 3 Oil safety chain dropping.
H
611 >88 3 Gas pressure too low
H/Ü
613 0 0 Air pressure signal missing.
H
614 1 1 F.A. safety interl. chain gets OFF
615 0 0 Flame is blown away during blow out of oil lance
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