107
8 System Operation
Fault
Code
No.
Restart according to Description
TRD EN676
921 0 0 Relay driver self-test : output terminal 11 or 66 (ETAMATIC) faulty.
H/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 respective card.
FMS with 660 R 0016 V4.3 when the burner is at a standstill:
Check the wiring between FMS and 660 R 0016 V4.3.
If the wiring has been performed correctly: exchange 660 R 0016 V4.3.
FMS with 660 R 0016 V4.3 at start of burner:
From the start of the burner, relay module type 660 R 0016 V4.3 checks the follow-
ing outputs:
- Ignition transformer (terminal 86)
- Ignition valves (terminal 85)
- Oil valves (terminal 84)
- Main Gas 1 (terminal 82)
- Main Gas 2 (terminal 83)
If faults H921 (in case of starting with gas as the fuel), H923, H924 (in case of start-
ing with O
2
as the fuel) occur by the time ignition is completed, the following faults
may be present:
- Lack of or too little firing rates at terminals 82 through 86
- Failure of fuses F1-F4 or F6
- Actual defect in one of the safety-related switching channels
For further troubleshooting, the diagnostic mode can be activated (see DLT6089/
DLT6065).
922 0 0 Relay driver self-test : output terminal 16 or 65 (ETAMATIC) faulty.
H/Ü See S921
923 0 0 Relay driver self-test : output terminal 43 or 68 (ETAMATIC) faulty.
H/Ü See S921
924 0 0 Relay driver self-test : output terminal 67 faulty
H/Ü See S921
925 0 0 Relay driver self-test : output terminal 45 faulty.
H/Ü See S921
926 0 0 Relay driver self-test : output terminal 68 or 61 (ETAMATIC) faulty.
H/Ü See S921
927 0 0 Relay driver self-test : output terminal 36 (ETAMATIC K202) faulty.
H/Ü See S921
928 0 0 Relay driver self-test : output terminal 41 faulty.
H/Ü See S921
929 0 0 Relay driver self-test : output terminal 76 faulty
H/Ü See S921
930 0 0 Relay driver self-test : Output K203 defect.
H/Ü See S921
931 0 0 Relay driver self-test : Output K201 defect.
H/Ü See S921
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