Checking 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:
&
Pull the leads off temperature limiter
A
.
&
Check the continuity of the tempera-
ture limiter with a multimeter.
&
Remove the faulty temperature lim-
iter.
&
Install a new temperature limiter.
&
After commissioning, press reset
button "
E
" on the control unit.
Repairs
(cont.)
88
Troubleshooting
5692
569
GB
Содержание Vitodens 300
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