Installation and operating instruction
Dual fuel burner WGL30/1-C ZM
10 Troubleshooting
83260202 1/2019-02 La
108-144
The following faults must only be rectified by qualified personnel:
Fault codes Cause
Rectification
18h
Switch off via PC Software
–
Second detailed fault code:
A1h
Invalid Bus address
Check Bus address
Second detailed fault code:
A5h
Configuration at output B4 incorrect
Check configuration at output B4
Second detailed fault code:
A6h
No keystrokes where made for 30 minutes in the
setting mode
–
Second detailed fault code:
A7h
Off function was activated
–
Second detailed fault code:
A8h
No calibration values were stored in the EEP-
ROM
–
Second detailed fault code:
A9h
No Bus connection
Check Bus connection
Second detailed fault code:
C2h
…
C3h
Operating mode O
2
trim not permitted
Check operating mode O
2
trim.
Second detailed fault code:
01h
…
1Bh
Internal unit fault
Interrupt the voltage supply temporarily
Reset the burner, if fault reoccurs replace the
combustion manager [ch. 9.19]
Second detailed fault code:
E1h
…
E7h
Calibration values in EEPROM incorrect
–
Second detailed fault code:
EEh
Communication to W-FM 25 failed
–
Second detailed fault code:
EFh
Extension module to W-FM 25 not compatible
Check version
1dh
EMC interference
Optimise EMC measures.
44h
Operating points were changed without approval
Re-adjust burner
Parameter E3 set incorrectly
Check parameter E3 [ch. 6.2.4]
47h
Type of air actuator invalid
Check parameter 34 (only possible with Vision-
Box).
Type of gas actuator invalid
Check parameter 35 (only possible with Vision-
Box).
48h
Plugs of actuators for gas and air mixed up
Change over plugs
Tolerance fault actuator
Check freedom of movement of air damper and /
or angle drive and gas butterfly valve
Replace actuator
49h
Actuator does not drive to reference point cor-
rectly
Check freedom of movement of air damper and /
or angle drive and gas butterfly valve
Replace actuator
53h
Insufficient gas, low gas pressure switch/ valve
proving gas pressure switch
Check gas connection pressure [ch. 7.1.6]
Set gas pressure switch [ch. 7.3.1]
Check gas pressure switch