Installation and operating instruction
Oil burner WM-L20/2-A R (W-FM100/200)
10 Troubleshooting
83252902 1/2019-09 La
58-84
10.1.1 Fault
If a fault occurs, the combustion manager initiates a controlled shutdown.
The display and operating unit alternately shows the shutdown behaviour and the
fault diagnosed as a plain text display.
Example
Safety
shutdown
Safety loop
is open
The burner restarts automatically as soon as the fault condition has been rectified.
The following faults may be corrected by the operator:
Fault
Cause
Rectification
Safety circuit open
Temperature limiter or pressure limiter
on heat exchanger has triggered
(1
Reset temperature limiter or pressure
limiter on heat exchanger.
Low water safety interlock on heat ex-
changer has triggered
(1
Top up water.
Reset low water safety interlock on
heat exchanger.
(1
Notify your heating contractor or Weishaupt Customer Service if the problem occurs repeatedly.
All other faults must only be rectified by qualified personnel.
Read the error code and proceed according to the error message, see installa-
tion and operating manual combustion manager.
