Baxi Combi 130 HE Installation And Servicing Instructions page 58

External Controls
230 V at A ?
YES
230 V at B ?
YES
230 V at C ?
YES
230 V at D ?
YES
230 V at E ?
YES
230 V at F ?
YES
Go to Diverter Valve
Fault or Replace Main
PCB.
58
Supplied By www.heating spares.co Tel. 0161 620 6677
Change Main PCB.
YES
NO
Is Mains Inlet Plug
fitted correctly ?
NO
Check wiring from Main
PCB to terminal block.
NO
Check Room
Thermostat on and
wiring OK.
NO
Check link wire
between C and D.
NO
Check Programmer on
and wiring OK.
NO
Check wiring from
E to F.
15.0 Fault Finding
Mains Input
L
N
External
Room
Filter
Timer
Thermostat
Link
Link
N L 1 2 3
B D
C
A
Transformer
Mains Input
Burner On
&
Fault Neons
Pump
Diverter Valve
Gas Valve
Modem PCB
A
Room Thermostat
F
Baxi
Optional
Intellistat
Pump
Only
Feed
+ S -
6 7
8
4 5
Kit No 247495
E
Flow &
Return
Thermistors
Overheat
Thermostats
&
Flow Switches
&
Condensate Trap
Room Control
Display PCB
Fan