Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
10 Troubleshooting
83311002 1/2018-03 La
92-132
10.2 Fault memory
The last 16 faults and the system status at the time of the faults are recorded in the
fault history.
Display faults
Activate the fault level [ch. 6.3].
The most recent fault will be displayed as fault
1
.
Turn dial knob.
Fault 1 … 16 can be selected.
1
2
1
Faults 1 … 16
2
Fault code