Central Heating works when it wants


Postby StevenG » Sun Sep 19, 2010 7:52 am

I have a megaflo central heating/hot water system. Been working fine for years but now the boiler fires up on it's own when the CH and HW are both off, only does it for a few minutes at a time but It's very confusing. Changed the timer controller but same problem....help
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Postby plumbbob » Sun Sep 19, 2010 7:51 pm

Do you have a dodgy frost thermostat?
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Postby StevenG » Sat Sep 25, 2010 7:18 am

plumbbob wrote:Do you have a dodgy frost thermostat?


is that the same as the room thermostat? if so it seems fine, switches off and on at selected temp.....
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