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You guys are great. I've got loads of hot water upstairs now. It was the diaphragm. When I opened up the diverter valve, there was a lot of loose hard rubber about. After removing the cream plastic 'thingy' the old diaphragm just crumbled. It was stuck to the cream thing and the back of...

I'm totally with you now. Thanks for the reply.

Okay, I triggered the microswitch by sticking a pencil between the switch and the shaft. I turned on the hot tap and the boiler fired up, but the water was luke warm. I let it run for a bit but there was no change in the temperature, so I turn the tap off and left it for a minute or so...

Great. I'll have a look at that tomorrow. Thanks to you both.

hi bab Thanks for quick reply. I took the front cover off, turned on the hot tap and the plunger never moved.

Hi folks The Alpha 240P combi boiler we have is causing some grief at the moment. If we want hot water we have to put the central heating on. The results are quiet quick downstairs, but when I go to run a bath I have to set the tap so it's just a small trickle. Any more and the water is...