Viessmann Vitocrossal 300 Service Instructions For Contractors page 107
Gas condensing boiler with matrix gas burner and lambda pro control, natural gas and lpg version open and balanced flue operation
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Also See for Vitocrossal 300:
- Service instructions manual (164 pages) ,
- Service manual (108 pages) ,
- Installation instructions manual (56 pages)
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Repairs
(cont.)
20
10
8
6
4
2
1
0.8
0.6
0.4
10 30 50 70 90 110
Temperature in °C
Checking the boiler water temperature sensor
3
3. Replace the sensor in the case of
severe deviation.
1. Boiler water temperature sensor
Pull plug § and measure the resist-
ance.
2. Check the sensor resistance and
compare it with the curve.
Troubleshooting
107
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