Viessmann VITOCROSSAL 200 Service Instructions Manual page 39

Burner control unit
Calling up the fault
Commissioning, inspection, maintenance
(cont.)
2. Press b.
The additional fault information will
be displayed under "Service" for as
long as this key is held down.
1. Press the reset button and a
simultaneously.
The most recent fault will be dis-
played:
First, "0" is displayed under
"Status".
The fault code is displayed under
"Service".
2. Press S to scan faults from the
penultimate to the tenth from last.
Display under
"Status"
The relevant fault code is displayed
under "Service".
3. Press S.
Then the operating display will be
shown again.
Fault
0 most recent fault
. .
. .
. .
9 tenth to last fault
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