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Hope someone can help, i what to insulate my roof along the rafters and eaves i have read that you must keep a gap of 50mm between the tiles and insulation, to aid ventilation. my question is that my roof is constructed of boarded planks with tiles on top so the tiles are not exposed, house...

UPDATE Right after waiting 6 days for the new pcb board to arrive :roll: i finally got round to refitting the combi back together. and now i have hot water and the central heating is all back up and running again :D just like to thank all you guys for the professional advise and help...

i will let you know :wink:

will i be right in saying that if the electrode was faulty and detecting a flame that will stop the ignition process :?:

i have been studying the in's and out of one for the last 3 days :shock: getting to know how one works, just one more question whats the job of a ionization electrode? does that stop the ignition when the burner has fired up?

i replaced the thermistors today.but still the same :( the engineer is saying that there is nothing left to check and its the board? but cannot say which one.

the engineer is a family friend so did't charge to check it out for me :wink: as the fan was on constant he first changed the flow switch and that cured that problem. We have checked the operation of the air pressure switch and the feed to it it works fine. Checked the flue for blockage all...

had a engineer out to the combi today, the flow switch was faulty and was replaced. but the combi still does not ignite :cry: he suggested a new pcb to be fitted.

just doing all checking myself have a back ground in mechanics :roll: its just i had a engineer out to it and he just took one look and just said it needs replacing without doing any checks. i,m having someone else coming out to it today so fingers crossed :?:

there is continuity between both terminals on the flow switch at all times but not checked for voltage yet. i have removed the flow switch which seems to have a brass rod with a magnet stuck on top. cleaned the rod up and checked for smooth operation seemed fine. done the same for the ch flow...

can anyone help :cry: i have a britony 80 1998 model was working fine until a few days ago. it refuses to fire up when the hot water tap is turned on or the central heating when the boiler is switched on the fan runs constant even with the hot water tap turned off , when the tap is...