Viessmann Vitodens 242-F Installation And Service Instructions Manual page 108

Troubleshooting
Maintenance
(cont.)
A
Fig. 77
1. Pull out the leads at temperature limiter
2. Check the continuity of the temperature limiter with
a multimeter.
3. Remove faulty temperature limiter.
4. Coat the new temperature limiter with heat conduct-
ing paste and install it.
5. After commissioning, press reset button R on the
control unit.
108
.
A