i have a baxi 105e combi boiler. it cuts out with the flame failure
light flashing .replaced both flame sensor & ignition sensor,the fault is still there if i reset it, it can last up to 2 days or 20 minuets? it will always reset . if it cuts out it sometimes takes 2-3 times to reset . when you reset it the fan starts up & the ignighter always sparks . have tested both micro switches all ok
poss. gas fault? im not sure but it might be when it switches from central heating to hot water? diverter fault? both plungers come out & hit the micro switches when it is working .there is no other fault anybody got any idears???

rob hamilton, April 2008

i changed the pcb

rob hamilton, June 2009

Did anyone solve this fault? i have the same problem!

CB, May 2009

I Have exactly the same fault same age boiler. Did you get to the root of the problem ?

Mick brunt, December 2008