Troubleshooting; Call Up Fault History Of Fault Codes; Call Up Current Fault Codes - Viessmann VITODENS 333 Service Instructions Manual

Troubleshooting

Call up fault history of fault codes

The last 10 faults are saved and may be called up.

Call up current fault codes

72
1. Press G and d simultaneously
for approx. 2 seconds.
2. Call up the individual fault codes
with a or b.
Order in which Fault code
fault codes
occur
1 Latest fault code
. .
. .
. .
10 10. last fault code
All saved fault codes can be
deleted with e.
3. Press d.
Red fault indicator U flashes for all
faults.
Fault flashes in the programming unit
display when a fault message is
issued.
A fault in the burner control unit
causes the display to flash E.