Viessmann Vitocrossal 300 Service Instructions Manual page 31

Burner control unit
Status Service
Fig. 47
2. Specification of each individual fault
Status Service
Fig. 48
(cont.)
2. Press
S to call up the second most recent fault,
up to the tenth most recent fault.
Display under "Status"
0
.
.
.
9
The fault code is displayed under "Service".
3. Press .
S
The operating display appears again.
1. Press .
a
While this key is held down, the status number/
operating phase in which the fault occurred is dis-
played under "Service". (Value between "01" and
"36". See flowchart on page 38).
2. Press .
b
For as long as this key is held down, additional
fault information is displayed under "Service".
Fault
Most recent fault
.
.
.
Tenth most recent fault
31