Installation and operating instruction
Oil burner WL40/1-A Z-1LN-A
10 Troubleshooting
83319702 1/2020-10 La
88-116
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
EEPROM
–
Second detailed fault code:
A9h
No Bus connection
Check Bus connection
Second detailed fault code:
C1h
Operating mode O
2
trim not permitted
Check operating mode O
2
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. 9.16]
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.
40h
Speed standardisation outside of limits set
Carry out speed standardisation
41h
First detailed fault code:
01h
Speed differs for too long
Check parameters 44 and 45
First detailed fault code:
02h
Speed difference is too great
Check speed signal
First detailed fault code:
03h
Speed setting value outside of tolerance for too
long
Re-adjust burner
Check parameters 44 and 45
42h
Speed signal (Namur) not plugged in
Plug in speed signal
44h
Operating points were changed without approval
Re-adjust burner
Parameter E3 set incorrectly
Check parameter E3 [ch. 6.2.4].
Parameter
46
was changed and speed was not
re-standardised
Re-adjust burner
46h
Rotational direction of burner incorrect
Check rotation direction of burner motor
47h
Type of air actuator invalid
Check parameter 34 (only possible with Vision-
Box).
48h
Tolerance fault actuator
Check freedom of movement of air damper and /
or angle drive
Replace actuator [ch. 9.14]