Buderus Logamax plus GB142-24 Servicing Instructions page 29

Diagnosis 7
page 28
19
Check that there is between 7.8 and 15.2
VDC on both contacts 1 and 2 of the BC10.
See page 126.
Replace the BC10.
Yes
Is there a voltage?
See the fitting instructions of
the BC10.
No
Measure the relevant part of the cable loom.
See page 126.
No
Replace the cable loom or the
Is the cable loom okay?
affected part thereof.
Yes
44
page 83
8
page 31
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications! 29