43
Troubleshooting
Repairs
(cont.)
Checking the safety chain
If the burner control unit cannot be
reset after a fault shutdown, although
the boiler water temperature is below
approx. 90Ă
º
C:
H
Pull off one cable of thermo-
couplesĂ
A
.
H
Check thermocouple continuity
with a multimeter.
H
Remove faulty thermocouples.
H
Coat replacement thermocouples
with heat conducting paste and
install.
H
After commissioning, press reset
keyĂ"
EU
" on the control unit.
5692Ă485
G
B
A
Summary of Contents for Vitodens 200
Page 25: ...25 Initial start up inspection and maintenance 5692Ă485 GB ...
Page 96: ...96 Control unit for weather compensated mode with Comfortrol prog unit 5692Ă485 GB ...
Page 99: ...101 5692Ă485ĂGB ...
Page 105: ...109 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
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