I have a Baxi 105e. The central heating works fine and when the heating is on, the hot water runs fine.
However, if the heating isn't on the hot water isn't heating up at all.
No warning lights show on the system and I have reset the system without success.
any iddeas
it sounds like the diaphram has gone in the hot water differencial valve so its not switching the micro switch, or the micro switch has gone, as you turn on a hot tap, a pin should push out.
hope that helps.
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