Viessmann VITODENS 200-W Service Instructions Manual page 112

Troubleshooting
Repairs
(cont.)
Checking the fuse
1. Switch OFF the power.
112
A
1. Pull the leads from temperature lim-
iter A.
2. Check the continuity of the tempera-
ture limiter with a multimeter.
3. Remove the faulty temperature lim-
iter.
4. Coat the replacement temperature
limiter with heat conducting paste
and install it.
5. After commissioning, press reset but-
ton R on the control unit.
F1
2. Release the side closures and pivot
the control unit down.