Repairs - Viessmann Vitodens 200 Service Manual
8.8 to 26.0 kw gas fired wall mounted condensing boiler natural gas and lpg version
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Also See for Vitodens 200:
- Technical manual (180 pages) ,
- Installation instructions manual (148 pages) ,
- Service manual (125 pages)
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Troubleshooting
Checking and acknowledging faults
Fault code
Const.
in the dis-
play
FF
X
Repairs
Checking the outside temperature sensor (weather-compen-
sated control unit)
84
Weat-
System
h.
character-
comp.
istics
X
Burner
blocked
1. Pull plug X3 from the control unit.
(cont.)
Cause
Remedy
Internal fault
Remove EMC
interference.
If the equip-
ment will not
restart, check
the boiler
coding card
and replace,
or replace the
control unit.
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- Coding
- Troubleshooting
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