Baxi 105e Hot Water problem

23 Nov 2011
Reaction score
United Kingdom
Hello, I hope someone can give me some guidance here. I have a Baxi 105e boiler, and recently the hot water started dropping off. I have worked out that we only have hot water when the central heating termostat is on. When it goes off the hot water disappears. Any thoughts?
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Yes, I think I know the possible causes of the problem!

"termostat", are you in Kilburn?
Almost surely to be the DHW diaphragm. £10 for the parts and 30 mins to fit, providing that's all is wrong.
I find its the SW in about 40% of the cases and the gland has virtually always been leaking.

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Thanks for that. I now remember I had an engineer out before and he mentioned something had gotten stuck, and I am going to guess this is the motorised valve. He loosened it up and it has probably seized again. Thanks for the help.

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