Checking The Cylinder Temperature Sensor; Checking The Outlet Temperature Sensor - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Repairs
(cont.)

Checking the cylinder temperature sensor

X21 X21 X7 X7
X20 X20
5
Fig. 37
20
10
8
6
4
2
1
0.8
0.6
0.4
10 30 50 70 90 110
Temperature in °C
Fig. 38

Checking the outlet temperature sensor

A
Fig. 39
1. Pull plug from the cable harness.
%
2. Check sensor resistance and compare it to the
curve.
3. In the event of severe deviation replace the sensor.
Troubleshooting
45