Check Flue Gas Temperature Sensor - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Troubleshooting
Repairs
(cont.)

Check flue gas temperature sensor

A
20
10
8
6
4
2
1
0.8
0.6
0.4
10 30 50 70 90 110
Temperature in °C
Sensor type: NTC 10 kΩ
48
1. Pull leads from flue gas temperature
sensor A.
2. Check the sensor resistance and
compare it with the curve.
3. Replace the sensor in the case of
severe deviation.