Viessmann Vitoplus 300 Service Instructions Manual page 79

Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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Repairs
(cont.)
1. Pull the leads from flue gas tem-
perature sensor A.
2. Check the sensor resistance and
compare it with the curve.
3. Replace the sensor in case of
severe deviation.
Troubleshooting
79

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