Installation and operating instruction
Gas burner WG10…/0-D ZM-LN
10 Troubleshooting
83300902 1/2019-02 La
87-112
The following faults must only be rectified by qualified personnel:
Fault codes Cause Rectification
65h First detailed fault code:00h
Tolerance fault air actuator, gas actuator
Check freedom of movement of air damper and /
or angle drive
Check freedom of movement of gas butterfly
valve
Replace actuator
First detailed fault code:01h
Tolerance fault air actuator or gas actuator
Check freedom of movement of air damper and /
or angle drive
Check freedom of movement of gas butterfly
valve
Replace actuator
First detailed fault code:02h
Tolerance fault gas actuator
Check freedom of movement of gas butterfly
valve
Replace actuator
First detailed fault code:03h
Tolerance fault gas actuator
Check freedom of movement of gas butterfly
valve
Replace actuator
First detailed fault code:04h
Tolerance fault air actuator
Check freedom of movement of air damper and /
or angle drive
Replace actuator
First detailed fault code:05h
Tolerance fault air actuator
Check freedom of movement of air damper and /
or angle drive
Replace actuator
First detailed fault code:07h
Time in setting mode run out
Plugs of actuators for gas and air mixed up
Press key within 30 minutes in setting mode
Change over plugs
A2h Safety circuit is open Check safety circuit
A4h Reverse voltage valve 1 Check wiring to double solenoid valve
A5h Reverse voltage valve 2 Check wiring to double solenoid valve
A6h Flame simulation/extraneous light Find and eliminate extraneous light source
Check ionisation electrode
A7h No flame signal after safety time Set ignition electrode [ch.9.5]
Check the ignition unit and replace if necessary
Check solenoid valve coil and cable, replace if
necessary
Check the ionisation electrode and cable, re-
place if necessary.
Check mixing pressure, if necessary reduce
Check burner setting
Replace combustion manager [ch.9.15]
A8h Flame failure during operation Check burner setting
Check the ionisation electrode, replace if
necessary [ch.9.5].
A9h Flame failure during stabilisation time see A7h
AAh Switch contact of air pressure switch not in
Standby
Check air pressure influences
Check air pressure switch setting [ch.7.3.2]
Check air pressure switch and cable, replace if
necessary
Replace combustion manager [ch.9.15]
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