Hi, you guys have helped me before, anyway I have had 8 months trouble free..............until today. The fault is thus, when I ask for hot water, it either supplys hot water no problem, or will initially provide hot water, then the bolier will cease firing up,so then cold water is provided, or it will just no fire up at all??? I have had a plumber out, and the boiler behaved itself for one whole hour!! So I am really confused??
Ocean Alpha 240P strange????
- Thread starter afc88
- Start date
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It sounds like the DHW diapragm has gone slack/has a split in it. A service kit is available and a relatively simple job - just turn mains to boiler off and opening the lowest hot tap will make safe.
If your plumber cannot find one for Alpha, Jaguar part will fit (but probably dearer P/no 3002192607)
If the radiators have been heating up while running the HW it may be the whole diverter valve is shot.
Cheers
If your plumber cannot find one for Alpha, Jaguar part will fit (but probably dearer P/no 3002192607)
If the radiators have been heating up while running the HW it may be the whole diverter valve is shot.
Cheers
Hi Beerlover, when the plumber came today his initial thought was the diapragm, but the pin thingy (I am not a plumber!) comes out and makes contact with the switch on every occasion (even when the boiler does not provide hot water? does this change your diagnosis?? Thanks for the reply!!
No the diapragm gets stretched at the edges and sticks -working intermitently. The pin may move but it might not always move enough to make the microswitch. Remove it (diapragm) to check. It isn't unknown for the microswitch to only make occaionally, but once contact has been made I cannot understand why it would drop out again.
PS the diapragm should be almost flat not look like a dessert bowl.
Cheers
PS the diapragm should be almost flat not look like a dessert bowl.
Cheers
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Hi Beerlover, I will start at the point you have suggested, I have looked again, and the pin always makes full contact with the switch, and the following happens, but not in any order..........
1) Will fire up and provide hot water
2) Will initially fire up, then "drop out" (again after different amounts of time), then fire up again
3) Boiler will display the right lights, the switch is activated, but simply no hot water
1) Will fire up and provide hot water
2) Will initially fire up, then "drop out" (again after different amounts of time), then fire up again
3) Boiler will display the right lights, the switch is activated, but simply no hot water
OK, many thanks again, but.........what is a venturi?? I thought is was a comedy film about a pet detective called ace!!! Starring Jim Carrey????
But seriously I do not know what that is?
But seriously I do not know what that is?
It is the bit that creates a pressure difference either side of the diaphragm - makes it move basically. We like big words as it justifies big prices.
Start by checking the diaphargm; quick cheap and easy. I hope this helps as, not being there, it would be my best guess. Others may point to your plate heat exchanger, but you've got to start somewhere.
Cheers
Start by checking the diaphargm; quick cheap and easy. I hope this helps as, not being there, it would be my best guess. Others may point to your plate heat exchanger, but you've got to start somewhere.
Cheers
Yep fully agree with your point, does £140 for replacing the diagrapm sound about right?
Bit high IF he is fitting the service kit - your plumber sounds like he is being charged for the whole actuator. Ask him, we aren't all robbers, 
forget the P/no I gave you earlier try 248066 Baxi part that will fit exactly, around about a tenner. The complete actuator is about £75 + vat. (ish)
http://alpha-boilers.com/custom/upl...s/240-280 Installation & Servicing Manual.pdf
I would still check it before replacing it though.
Page 33 section 8.41
Cheers
forget the P/no I gave you earlier try 248066 Baxi part that will fit exactly, around about a tenner. The complete actuator is about £75 + vat. (ish)http://alpha-boilers.com/custom/upl...s/240-280 Installation & Servicing Manual.pdf
I would still check it before replacing it though.
Page 33 section 8.41
Cheers
Try this P/no 5111137 even better!
http://www.discountedspares.co.uk/potterton-5111137-diaphragm-service-kit
Cheers
http://www.discountedspares.co.uk/potterton-5111137-diaphragm-service-kit
Cheers
Hi Beerlover, many many thanks for your time!!!
Have a good weekend, oh and a couple of beers!!
Have a good weekend, oh and a couple of beers!!
Sorry to hear that, hope you are back out on the road soon!!! OK another one for you, if you are not too busy. (you may regret your last post!!)
Moved into this house 18 months ago, downstairs loo was OK, no problem at all, then we noticed a leak from the bottom of the tank of the toilet (where the water pipe goes in)
Called plumber replaced part, no leak, BUT every time we now flush the loo, and the end of the "water refill" there is an almighty "thud" my mate said it is water hammer, but why did it not do this before, and only since a new part was fitted???
Moved into this house 18 months ago, downstairs loo was OK, no problem at all, then we noticed a leak from the bottom of the tank of the toilet (where the water pipe goes in)
Called plumber replaced part, no leak, BUT every time we now flush the loo, and the end of the "water refill" there is an almighty "thud" my mate said it is water hammer, but why did it not do this before, and only since a new part was fitted???
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