Hi, hope someone can help. My 85 year old neighbour's heating comes on everytime she puts on her hot water. i know a bit about plumbing and thought it might be reversed circualtion, but she has a 3 port mid position valve, not 2 port, or 2 x 2 port valves. this problem only started a couple of weeks ago. could it be that the switch in the valve is stuck and the valve needs replacing? the motor runs when the heating comes on. I've asked around and have been told with the 3 port the valve it would be the other way around, the hot water comes on with the heating. can someone point me in the right direction so i can help get this fixed. thanks!
help - heating comes on with hot water
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thanks!
she says the boiler was there when she moved there 30 years ago, so how old is anyone's guess! it's a potterton, not sure of the model, but it's free standing. and outsid the house in an outhouse!
so the best bet would be to replace the 3 port valve then?
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Originally posted by Skully View Postthanks!
she says the boiler was there when she moved there 30 years ago, so how old is anyone's guess! it's a potterton, not sure of the model, but it's free standing. and outsid the house in an outhouse!
so the best bet would be to replace the 3 port valve then?
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it does sound like the 3 port valve,
on a 3 port the water will almost certainly come on with the central heating unless it's up to temp,
the motor in the valve has probably motored to far over and can't get back, this usually happens this time of year when the central heating is on for most of the day.
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