Weishaupt WG20 1-C Z-LN Series - Page 71

Installation and operating instruction
Gas burner WG20…/1-C Z-LN
10 Troubleshooting
83054602 1/2020-01 La
71-96
The following faults must only be rectified by qualified personnel:
Fault codes Fault Cause Rectification
Flashing 6 times
Actuator fault
Actuator does not reach tar-
get position within 10
seconds
Actuator plug unplugged Plug in actuator plug
Actuator defective Check actuator, replace if
necessary
Check position of limit
switches
Setting of limit switches in-
correct
Gas valve / air damper
blocked
Check freedom of move-
ment of gas valve and air
damper
Flashing 7 times
Flame failure during opera-
tion
(partial load)
Flame signal insufficient Burner setting incorrect Check burner setting
Check flame signal
Ionisation electrode soiled Clean ionisation elec-
trode
Ionisation electrode set in-
correctly
Set ionisation electrode
[ch.9.5]
Ionisation electrode defect-
ive
Check the ionisation
electrode, replace if ne-
cessary
Flashing 8 times
Gas pressure switch fault
Gas pressure switch does
not react
Gas pressure switch set in-
correctly
Set gas pressure switch
[ch.7.3.1]
Gas pressure switch de-
fective
Check gas pressure
switch, if necessary re-
place
Flashing 9 times
Flame failure during opera-
tion
(full load)
Flame signal insufficient Burner setting incorrect Check burner setting
Check flame signal
Ionisation electrode soiled Clean ionisation elec-
trode
Ionisation electrode set in-
correctly
Set ionisation electrode
Ionisation electrode defect-
ive
Check the ionisation
electrode, replace if ne-
cessary
Flashing 10 times
Combustion manager fault
Burner does not start Parameters have been
changed
Reset burner [ch.10.1.2]
Combustion manager de-
fective
Reset burner [ch.10.1.2],
if fault reoccurs replace
combustion manager