Viessmann VITODENS 200-W Service Instructions Manual page 109

Repairs
(cont.)
20
10
8
6
4
2
1
0.8
0.6
0.4
10 30 50 70 90 110
Temperature in °C
3. Replace the sensor in case of severe
deviation.
Note
Water can leak when replacing the
outlet temperature sensor. Close the
cold water shut-off valve. Drain the
DHW line and the plate heat
exchanger (DHW side).
Troubleshooting
109