Fault Memory - Viessmann VITOCROSSAL 200 Service Instructions Manual

Burner control unit
Status Service

Fault memory

The ten most recent faults are saved and may be called up. The order of scans ranges
from the most recent to the earlier fault codes. The fault memory display is terminated
automatically if no key or the reset key is pressed within 20 s.
Note
As the burner will attempt to restart after a fault or constantly tries to start, it is essential
that the fault memory is checked to establish the cause of the fault.
1. Scanning the fault
Status Service
(cont.)
1. Press a.
2. Press b.
3. Hold down the reset button for longer
1. Press the reset button and a simul-
The operating phase under which the
fault has occurred, is displayed under
"Service" as long as this key is held
down. (Phase from "01" to "36"; see
flow diagram on page 51).
The additional fault information will
be displayed under "Service" for as
long as this key is held down.
than ¼ s.
The operating display is shown again
and the burner control unit is reset.
taneously.
The most recent fault will be dis-
played:
First, "0" is displayed under "Status".
The fault code is displayed under
"Service".
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