Viessmann Vitocrossal 300 Service Instructions Manual page 24
Gas fired condensing boiler with matrix−compact gas burner, for open flue and balanced flue operation
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Also See for Vitocrossal 300:
- Service instructions manual (164 pages) ,
- Service instructions for contractors (148 pages) ,
- Service manual (108 pages)
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Troubleshooting
Display and programming unit at the burner control unit
Type of display
Operating display in
standard mode
Operating display for
operation deviating
from standard
condition
Service display
Fault display
Display
Operating condition
status
0
No heat demand
1
System tests
Heat demand
2
Fan run−up
3
Pre−purge
4
Pre−ignition
5
Safety time
7
Mode
8
Post−purge
24
Status
(1 digit)
Operating
condition, see
table below
Message code,
see table below
Message code
Display flashes
Service
(two digits)
Display "FL" if a
flame signal is
present
Operating
parameter display
Operating
parameter display
Fault code
Display
Message code
status
A
Jumper B 3 missing (see
page 40)
d
Control stop function active
F
Error
L
Air pressure switch standby
position/flue gas backup
(cont.)
See
Page 25
Below
Page 26
Page 31 to 34
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