Viessmann VITODENS 100-W Installation And Service Instructions Manual page 42

Troubleshooting
Repairs
(cont.)
Checking the temperature limiter
If the burner control unit cannot be reset
after a fault shutdown, although the
boiler water temperature is below
approx. 95 °C, check the temperature
limiter.
42
1. Disconnect the leads from tempera-
2. Check the continuity of the tempera-
3. Remove the faulty temperature lim-
4. Install a new temperature limiter.
5. Press "Reset" at the control unit (see
A
ture limiter A.
ture limiter with a multimeter.
iter.
page 36).