We have a 2 year old Baxi boiler which has the following fault. The
burner comes on and then goes out after around 10 - 30 seconds. The
pressure meter is showing green. Just wondering what you people would
try next.

The manual says we should replace the ignition PCB - any thoughts !?!?


Thanks Merry Chrimbo !!!!!!!

JGW wrote:
We have a 2 year old Baxi boiler which has the following fault. The
burner comes on and then goes out after around 10 - 30 seconds. The
pressure meter is showing green. Just wondering what you people would
try next.

The manual says we should replace the ignition PCB - any thoughts !?!?

I agree, why in the world would one expect the manufacturer to know
anything about their product and failures in it???

Erm - thanks !

Was wondering if it would be worth fault finding the Flame sensing
electrode, or if this part is totally unrelated to the symptoms.

Thanks.

OK upon further investigations the water coming out of the taps is at
10000000 degrees, and the reason the boiler is switching off is because
the overheat thermostat is activating. Im now thinking along the lines
of checking/replacing the sensors.

The manual says how to replace these, but I was thinking of switching
the 2, to see if it changed the symptoms.

Any thoughts - thanks

JGW wrote:
We have a 2 year old Baxi boiler which has the following fault. The
burner comes on and then goes out after around 10 - 30 seconds. The
pressure meter is showing green. Just wondering what you people would
try next.

The manual says we should replace the ignition PCB - any thoughts !?!?


Thanks Merry Chrimbo !!!!!!!



For better answers, post to this group:

UK.D-I-Y

Jim

JGW wrote:
We have a 2 year old Baxi boiler which has the following fault. The
burner comes on and then goes out after around 10 - 30 seconds. The
pressure meter is showing green. Just wondering what you people would
try next.

The manual says we should replace the ignition PCB - any thoughts !?!?


Thanks Merry Chrimbo !!!!!!!

Check that any isolation valves are open allowing a flow path.
Check the sensors by unmounting them and running the boiler with the
sensors connected but removed from their mounting position.
Any fault lights flashing?