If the burner control unit cannot be
reset after a fault shutdown, although
the boiler water temperature is below
approx. 75 °C, check the following:
1.
Pull the leads from
thermocouple
A
.
2.
Check the continuity of the thermo-
couple with a multimeter.
3.
Remove the faulty thermocouple.
4.
Install a new thermocouple.
5.
After commissioning, press reset
button "
E
RESET" at the control
unit.
Checking the fuse in the wiring chamber
1.
Switch OFF the power.
2.
Remove the cover from the wiring
chamber.
3.
Check fuse F1.
Repairs
(cont.)
108
Troubleshooting
5592
883
GB
Summary of Contents for VITODENS 343-F WS4A
Page 137: ...Parts lists cont 137 Parts lists 5592 883 GB Service ...
Page 138: ...Parts lists cont 138 Parts lists 5592 883 GB ...
Page 139: ...Parts lists cont 139 Parts lists 5592 883 GB Service ...
Page 140: ...Parts lists cont 140 Parts lists 5592 883 GB ...
Page 141: ...Parts lists cont 141 Parts lists 5592 883 GB Service ...
Page 142: ...Parts lists cont 142 Parts lists 5592 883 GB ...
Page 151: ...151 5592 883 GB ...
