Check the temperature limiter
If the burner control unit cannot be reset after a fault shutdown, although the
boiler water temperature is below approx. 75 °C, check the temperature limiter.
1.
Pull the leads from temperature lim-
iter
A
.
2.
Check the continuity of the tem-
perature limiter with a multimeter.
3.
Remove faulty temperature limiter.
4.
Coat the replacement temperature
limiter with heat conducting paste
and install.
5.
To reset press "Reset" key on the
control unit.
Repairs
(cont.)
77
Troubleshooting
58
62
670
GB
Service
