Overview Of Electronics Modules; Resetting The Burner - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Overview of electronics modules

Fig. 40
A HBMU heat management unit
Programming unit
B

Resetting the burner

The display shows and
The burner is locked due to a fault.
Reset the burner:
Note
The burner fault display can be closed by pressing
for 4 s. The fault can be opened later by tapping
simultaneously.
A reset is only possible after the burner has cooled
down.
A
B
flashes. Tap the following buttons:
1. / to display the fault number.
2. and simultaneously for approx. 4 s.
A rotating bar appears on the display. The reset
process has started.
If the fault no longer exists, the home screen will
appear.
Troubleshooting
69