44
Outside temperature sensor
X21
X7
X20
4 3 2 1
Fig. 34
1.
Open the control unit enclosure. See page 15.
2.
Disconnect leads from outside temperature sensor.
100
10
-20 -10 0
10 20 30
Temperature in °C
6
8
20
40
60
80
200
Resistance
in kΩ
Fig. 35
Sensor type: NTC 10 k
Ω
3.
Check the sensor resistance and compare it to the
curve.
4.
In the event of severe deviation replace the sensor.
Troubleshooting
Repairs
(cont.)
5697789
Diagnosis
Содержание Vitodens 111-W
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