Fault Memory - Viessmann VITOCROSSAL 200 Service Instructions Manual

Commissioning, inspection, maintenance
Burner control unit
A Fault code of the most recent fault
(see table on page 40)

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.
Specification of each individual fault
38
(cont.)
1. Press a.
The status number / operating
phase under which the fault has
occurred is displayed under "Ser-
vice" as long as this key is held
down (values "01" to "36"; see flow
diagram on page 48).
2. Press b.
The additional fault information will
be displayed under "Service" for as
long as this key is held down.
3. Hold down reset for longer than ¼
s.
The operating display is shown
again and the burner control unit is
reset.
1. Press a.
The status number / operating
phase under which the fault has
occurred is displayed under "Ser-
vice" as long as this key is held
down (value "01" to "36". See flow
chart on page 48).