Baxi Combi 133 HE Plus Installation & Servicing Instructions Manual page 51

ELECTRICAL SUPPLY
240V at A ?
YES
240V at B ?
YES
PCB fuse OK ?
YES
Replace PCB.
© Baxi Heating UK Limited 2005
LED
Lights
ON
NO
Connect Mains to boiler.
NO
Check wiring from
terminal block to PCB.
Check for shorts on
NO
pump, fan & gas valve.
Replace if shorted &
replace fuse.
15.0
Off
Off
Off
Off
B
Fuse
Fault Finding
A
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