Viessmann Vitodens 200 Service Instructions Manual page 79
Type wb2a, 8.8 to 20.0 kw wall mounted gas fired 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 (132 pages)
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Repairs
(cont.)
Checking the boiler water temperature sensor, cylinder tem-
perature sensor or the flow temperature sensor for a low loss
header
1.
Boiler water temperature sensor:
Pull the leads from boiler water
temperature sensor A and
check the resistance.
Cylinder temperature sensor: Pull
plug % from the cable harness at
the control unit and check the
resistance.
Flow temperature sensor: Pull
plug "X3" from the control unit
and check the resistance across
terminals "X3.4" and "X3.5".
Troubleshooting
79
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