Outside Temperature Sensor - Viessmann VITODENS 050-W Installation And Service Instructions Manual

Repairs
(cont.)

Outside temperature sensor

OT- OT+
4 3 2 1
A
1. Disconnect the leads from outside
temperature sensor A.
200
100
80
60
40
20
10
8
6
-20 -10 0
Temperature in °C
Sensor type: NTC 10 kΩ
2. Check the sensor resistance. Com-
pare with the curve.
10 20 30
3. In the event of severe deviation
replace the sensor.
Troubleshooting
57