Weishaupt W-FM 100 Installation And Operating Instruction page 202

9 Troubleshooting
Fault Diagnostic Cause
codes code
18 – Invalid value in a compound curve
19 01 ... 2F Actuator error during comparison between
potentiometer channel A and B
01 Air actuator fault
02 Fuel actuator fault
04 Auxiliary actuator1 fault
08 Auxiliary actuator2 fault
20 Auxiliary actuator3 fault
1A 1 Curve gradient between two load points too
great.
Maximum permissible gradient at 0.1 % load
change:
1B – The burner shuts down during the setting of
the compound curves due to lack of heat de-
mand.
1C 01 ... 3F Ignition position for the relevant actuator is
missing.
01 Air actuator ignition position missing
02 Fuel actuator ignition position missing
04 Auxiliary actuator1 ignition position missing
08 Auxiliary actuator2 ignition position missing
10 Frequency converter ignition position missing
20 Auxiliary actuator3 ignition position missing
1D 01 ... 3F Run time fault actuators / frequency converter If several faults occur, the diagnosis codes
01 Air actuator run time fault
02 Fuel actuator run time fault
04 Auxiliary actuator1 run time fault
08 Auxiliary actuator2 run time fault
10 Frequency converter run time fault
20 Auxiliary actuator3 run time fault
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If occurring sporadically: Optimise EMC measures. If occurring continuously replace defective component.
83054802 1/2018-07 La
Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
3.6° (with 30 s ramp time)
1.8° (with 60 s ramp time)
0.9° (with 120 s ramp time)
Rectification
Check compound curves.
Valid load range: 0 ... 100 %
Valid position range: 0 ... 90°
Valid speed range: 0 ... 100 %
During initial commissioning:
Correct value.
After previously correct operation:
Replace W-FM.
If several faults occur, the diagnosis codes
are add up.
Set allowed Pot.diff to 15, see
[ch. 6.13.3].
Check CAN Bus connection [ch. 5.1].
Internal fault
Change load assignment in the load points
to fall below the maximum permissible
gradient [ch. 6.9.5].
Set compound curves in Manual oper-
ating mode [ch. 6.7].
Prevents shutdown by the load controller.
Shutdown only occurs if the temperature
monitor responds. The current load point
being adjusted can still be saved.
If several faults occur, the diagnosis codes
are add up.
Set ignition position [ch. 6.9.4].
are add up.
Check mechanics after the actuator for
freedom of movement.
Check actuator voltage supply.
Check actuator ramp time [ch. 6.9.1].
Ramp time should not be less slowest ac-
tuator
202-228
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