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agreed. Thanks for all your help guys.

I agree. I just wanted to be armed with a bit of info!!! You never know! I think I'll have to just get him to sort the whole thing now. He does seem trustworthy.

Pressue is quite low but has always been. The HW works fine, as it used to, now but only if I press it manually.

How would you guys (if you were consumers and had no idea like me!!) pursue this? He's waiting instructions to get a new DV.

the little pin does not pop out and flick it when the HW is turned on

Cheers guys. I know I shouldn't ask for costings etc but: a)have I needlessly paid for the diaphram? and b)is approx £100 for new DV (on top of new diaphram) roughly correct? Thanks again

CORRECTION Firstly, I've not paid him. He is genuine, perhaps not the best at sorting alphas. He's been round a few times now and not charged a penny. He is CORGI registered. I've just tried the HW again manually pressing the switch and the water warms up straight away and the heating DID...

Rob - the whole front unit of the valve has been replaced.

by the way the circular brass lump has been replaced. should it have been???

Thanks Gasguru Something tells me this plumber (recommended) does not know a great deal about alphas. The original problem was loss of HW. Boiler did not fire when taps were turned on. Since I started pressing it manually the heating comes on and HW does too, but takes ages to warm up...

Hi Paul Yes, it fires if I press it manually but both heating and HW come on, although it takes ages to warm up. It looks as though it's fitted fine.

Hi Rob Alpha 240e

Hi there I've just had the hot water diaphram replaced on my alpha boiler but the problem (of the hot water not firing up) is still there. Also, the heating comes on when I manually press the micro switch. The plumber came today, replaced the diaphram but said the whole DV needs replacing...

cheers Tony. Yeah, not sure why he doesn't carry the common diaphrams about. He is trustworthy though so that's something.

cheers Dave, Yes it is the microswitch on the front of the DV. Would the engineer be able to have a look at this when he comes or do you think I need to forewarn him? Thanks again

Hi there Having a few problem with my Alpha 240 boiler. I have a hot water diaphram on order and an engineer booked to come and rectify the problem. The hot water had stopped working. I can use hot water by manually pressing the switch to fire up the boiler. However, can anyone answer the...

thank you both very much! Simon

Morning My Alpha boiler needs a new hot water diaphram. Does anyone know where I can find the part number so I can order one? Also, I would not normally consider tinkering with a boiler, however it does look a fairly straightforward part to take out and pop another one in again. Is this a...

Thanks very much Tony. Very helpful....

Morning! Having problems with hot water on my Alpha 240 boiler. It worked on and off yesterday and then would not fire up at all last night. Same this morning. I put the heating on this morning for a while and now the hot water seems to fire up normally. I assume it will stop working at some...