baxi solo WM 50/4 pf on/off

8 Jan 2005
Reaction score
United Kingdom
Baxi solo fires and ignites ok. Burner comes on for about 30 seconds then cuts off. It does this all times on/ off. Both gas and pilot solenoid functions ok. Is there a way of faulting the Boilerstat. :rolleyes: :rolleyes:
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Easy to check a thermostat with a multimeter - its just an ordinary one. A neon screwdriver would do at a pinch.
Thankyou for your prompt reply gents...The fan was changed in sep last year. By fan switch do you mean the air presure switch?... ..Regarding the thermostat is there a way to tell that it is stuck on overheat thus telling the solenoid to cutt off via the pcb. I have stuck a multimeter and it reads ok. What about the PCB? how could I disgnose?.
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blocked pilot injector, pilot lights then main burner pilot shrinks (due to more gas going to main burner) off flame rectication electrode.stopping main burner, then starts ignition cycle again

requires corgi engineer
I thought 30 secs would be a bit long for that.

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