Viessmann MPA51 Operating And Service Instructions page 12

Burner control unit
Burner control unit
Status Service
2. Specification of each individual fault
Status Service
12
(cont.)
2. Press S to call up the second most
3. Press S.
1. Press a.
2. Press b.
recent fault, up to the tenth most
recent fault.
Display under
"Status"
0
.
.
.
9
The relevant fault code is displayed
under "Service".
The operating display is shown
again.
For as long as this key is held down,
the status number / operating phase
under which the fault has occurred is
displayed under "Service". (Value
between "01" and "36". See flow dia-
gram on page 24).
For as long as this key is held down,
additional fault information is dis-
played under "Service".
Fault
Most recent fault
.
.
.
Tenth most recent
fault