Buderus Logamax plus GB142-24 Servicing Instructions page 69

Condensing gas boiler
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6A Branch 05 v1 v8
page 66
32
Check the plug-and-socket connection of the
gas valve. See page 99.
Is the plug-and-socket
connection okay?
Check the gas valve during the
0
L
operating code
to make sure it receives
power then. See page 98.
Does the gas valve receive power?
Measure the resistance in the wires between
the gas valve plug and
the UBA 3 mounting base.
Is the wiring okay?
44
page 83
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
No
Yes
Yes
No
No
Yes
Reconnect the plug-and-socket connection at
the gas valve. See page 99.
Replace the gas valve.
See page 101.
Replace the cable loom or the affected part
thereof.
Diagnosis
31
page 71
7
69

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