chady Posted February 8, 2017 Report Share Posted February 8, 2017 Good evening all Ok I have a potterton HE combi boiler. It's about 7 years old. And the last couple of years when the CH came on the CH light came on but the flame light wouldn't. This was only occasional. Now! The hot water comes out scolding regardless of what it's set to. And the CH is all ways lit but never the burner light and the heating is never on! The thirmastat is showing les than the set temp and is showing the boiler active so I no it's not that. The boiler is allso running at about 80 dog that it has never done before? I no it sounds very confusing and hard to diagnose but have you any ideas what it is? Thurmastat? Diversion valve? Thanks all in advance Quote Link to comment Share on other sites More sharing options...
Winston72 Posted February 8, 2017 Report Share Posted February 8, 2017 what clock do you have fitted? Quote Link to comment Share on other sites More sharing options...
chady Posted February 8, 2017 Author Report Share Posted February 8, 2017 http://www.plumbworld.co.uk/danfoss-tp5000si-programmable-767-1391?utm_source=GoogleBase&utm_medium=GB&utm_campaign=GoogleBase&gclid=CLnN8cm_gdICFW8B0wodZVoGog One of these? Quote Link to comment Share on other sites More sharing options...
vampire Posted February 8, 2017 Report Share Posted February 8, 2017 Just replacing a potterton with a grant combi,last time i ever have to go out and repair that #### Quote Link to comment Share on other sites More sharing options...
Winston72 Posted February 8, 2017 Report Share Posted February 8, 2017 Good evening all Ok I have a potterton HE combi boiler. It's about 7 years old. And the last couple of years when the CH came on the CH light came on but the flame light wouldn't. This was only occasional. Now! The hot water comes out scolding regardless of what it's set to. And the CH is all ways lit but never the burner light and the heating is never on! The thirmastat is showing les than the set temp and is showing the boiler active so I no it's not that. The boiler is allso running at about 80 dog that it has never done before? I no it sounds very confusing and hard to diagnose but have you any ideas what it is? Thurmastat? Diversion valve? Thanks all in advance Ill have to think on that one sober, Quote Link to comment Share on other sites More sharing options...
chady Posted February 8, 2017 Author Report Share Posted February 8, 2017 Are they no good? It came with the house (new) so no dought cheap. Thanks Ill have to think on that one sober, Ok thanks it's appreciated Ill have to think on that one sober, Quote Link to comment Share on other sites More sharing options...
Winston72 Posted February 8, 2017 Report Share Posted February 8, 2017 Are they no good? It came with the house (new) so no dought cheap. Thanks Ok thanks it's appreciated to some extent they're "ok", when lights start coming on without a demand and burner lights don't come on when a boiler is firing,most engineers would say scrap it and put a new one in, personally i would remove the clock and run it without to see whats happening,that is a stinker without been able to see it and having a multi meter to hand Quote Link to comment Share on other sites More sharing options...
chady Posted February 9, 2017 Author Report Share Posted February 9, 2017 No that fine winston Thank you it justseams strange that the green light comes on so the CH is trying to work but the ignition light doesn't come on but the pipes are red hot on the boiler. Any plumbers from Leicester on here? Quote Link to comment Share on other sites More sharing options...
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