Installation and operating instruction
Dual fuel burner WGL30/1-C ZM
10 Troubleshooting
83260202 1/2019-02 La
111-144
The following faults must only be rectified by qualified personnel:
Fault codes Cause
Rectification
d2h
More than 5 resets in the past 15 minutes by re-
mote reset (X3:14)
Rectify cause of fault
Reset via operating panel on burner.
Press and hold reset key for 5 seconds.
Display flashes.
Reset burner
d4h
External voltage at operating signal X7:B5
Find and eliminate external voltage source
Internal unit fault
Interrupt the voltage supply temporarily
Reset the burner, if fault reoccurs replace the
combustion manager [ch. 9.19]
10.3 Operating problems
The following faults must only be rectified by qualified personnel:
Observation
Cause
Rectification
Poor start behaviour of burner
Mixing pressure too high
Reduce mixing pressure in ignition
position
Correct mixing pressure in ignition
load, if necessary set P
0
different to
P
1
Ignition electrodes set incorrectly
Set ignition electrodes [ch. 9.6]
Mixing head set incorrectly
Set mixing head [ch. 9.4]
Oil pump makes severe mech-
anical noise
Oil pump sucks air
Ensure oil supply is tight
Suction resistance in oil line too high
Clean filter
Check oil supply
Oil nozzle atomisation uneven
Nozzle blocked/soiled
Replace nozzle [ch. 9.8]
Nozzle worn
Flame tube/diffuser has heavy
soot deposit
Oil nozzle defective
Replace nozzle [ch. 9.8]
Mixing head set incorrectly
Set mixing head [ch. 9.4]
Incorrect combustion air quantity
Adjust burner
Boiler room ventilated insufficient
Ensure sufficient boiler room ventila-
tion
Wrong oil nozzle
Check nozzle type [ch. 4.2]
Combustion pulsating or burner
booming
Mixing head set incorrectly
Set mixing head [ch. 9.4]
Incorrect combustion air quantity
Adjust burner
Wrong oil nozzle
Check nozzle type [ch. 4.2]
CO content too high
Nozzle distance too big
Check nozzle distance, adjust if
necessary [ch. 9.4]
Stability problems
Mixing pressure too high
Decrease mixing pressure
Nozzle distance incorrect
Check nozzle distance, adjust if
necessary [ch. 9.4]
Wrong oil nozzle
Check nozzle type [ch. 4.2]
No display at operating panel
Plug from operating panel not properly
plugged in
Plug in plug on combustion manager
correctly
Operating panel defective
Replace operating panel