Viessmann VITOLADENS 300-C Service Instructions Manual page 64

Troubleshooting
Fault display
(cont.)
3. d All fault messages are
acknowledged simulta-
neously, the fault display
will be deleted and the red
fault indicator continues to
flash.
Calling up acknowledged fault messages
Press the following keys:
1. d for approx. 3 s.
Calling up fault codes from the fault memory (fault history)
The 10 most recent faults are saved
and may be scanned.
The faults are ordered by date, thus
the most recent fault is fault number 1.
Fault codes
Fault code System character-
on the dis- istics
play
0F Control mode
64
2. a/b for the acknowledged fault.
Press the following keys:
1. G + d simultaneously for
approx. 2 s.
2. a/b for individual fault
codes.
3. Note
All saved fault codes can be
deleted with e.
4. d Scanning is completed.
Cause Measures
Service Service the equipment.
After the service, set
coding address "24:0".