Viessmann Vitodens 050-W Installation And Service Instructions Manual page 55

Repairs
(cont.)
Checking the 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
1. Pull out the leads on flue gas temper-
ature sensor A.
2. Check the sensor resistance and
compare it with the curve.
3. In the event of severe deviation
replace the sensor.
Troubleshooting
55