Check Flue Gas Temperature Sensor - Viessmann VITODENS 100-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
72
1. Pull leads from flue gas temperature
sensor A.
2. Check the sensor resistance and
compare it with the curve.
3. In the event of severe deviation
replace the sensor.