39
Troubleshooting
Repairs
(cont.)
Checking the boiler temperature sensor, DHW cylinder
temperature sensor or the low loss header flow temperature
sensor
1.
Boiler temperature sensor:
Pull the cables off boiler
temperature sensorĂ
A
.
DHW cylinder temperature sensor
or low loss header flow
temperature sensor:
Pull plugĂ"X
Ă
7" off.
2.
Check the sensor resistance and
compare actual values with the
curve.
3.
Replace the sensor in case of
severe deviation.
¨
Ă
Safety instruction
The boiler temperature sensor is
immersed in the heating water.
Drain the boiler before replacing
the sensor.
5692Ă485
G
B
A
10
1
10
30
50
70
90
110
20
40
60
80
100 120
Temperature in °C
0.2
0.4
0.6
0.8
2
4
6
8
20
40
Resistance in k
Summary of Contents for Vitodens 200
Page 25: ...25 Initial start up inspection and maintenance 5692Ă485 GB ...
Page 96: ...96 Control unit for weather compensated mode with Comfortrol prog unit 5692Ă485 GB ...
Page 99: ...101 5692Ă485ĂGB ...
Page 105: ...109 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 107: ...111 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 109: ...113 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
