Installation and operating instruction
Gas burner WG10…/0-D ZM-LN
10 Troubleshooting
83300902 1/2019-02 La
88-112
The following faults must only be rectified by qualified personnel:
Fault codes Cause
Rectification
Abh
Air pressure switch does not react
Check air pressure switch setting [ch. 7.3.2]
Check hoses on air pressure switch
Check air pressure switch and cable, replace if
necessary
Check burner motor and cable, replace if
necessary [ch. 9.8]
Adh
Insufficient gas low gas pressure switch
Check gas connection pressure [ch. 7.1.5]
Set gas pressure switch [ch. 7.3.1]
Check gas pressure switch
AEh
Valve 1 leaking during valve proving
Check soundness of gas valve train [ch. 7.1.3]
Check setting and function of gas pressure
switch [ch. 7.3.1]
Replace double gas valve
Check parameter E0 [ch. 6.2.4].
AFh
Valve 2 leaking during valve proving
Check soundness of gas valve train [ch. 7.1.3]
Check setting and function of gas pressure
switch [ch. 7.3.1]
Replace double gas valve
b6h
Fault POC contact
Check POC contact
Check double gas valve (valve 1)
bAh
Flame simulation/extraneous light at start-up
Find and eliminate extraneous light source
Check ionisation electrode
bbh
Burner shutdown via contact X3:7
(plug No. 7)
–
CAh
Valve proving faulty
Check low gas pressure switch/valve proving
gas pressure switch
Check double gas valve
Cdh
No signal on input X3:15
Check wiring
CEh
Bridging plug No. 15 is missing
Plug in bridging plug
High gas pressure switch does not react
Check gas connection pressure [ch. 7.1.5]
Set gas pressure switch
Check gas pressure switch
CFh
No start release (X3:14)
Check start release
d1h
Connection to actuator faulty
Rectify the fault using the following procedure:
Interrupt voltage supply.
Plug in plug on combustion manager correctly
Fit W-FM cover [ch. 3.3.5].
Parameter
E0
not configured correctly
Check configuration of parameter
E0
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. 9.15]