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Discuss Boiler over heats and turns off in the Central Heating Forum area at PlumbersForums.net

Daveafsmith

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Hi everyone.
I have the old style boiler, basically last year it started not working after being on for 10 mins.. Replaced the pump and 3 way port valve cleared the lines, bled everything, cleaned it all out Etc. Literally done most things.

Basically it will work bit o my if I manually position the 3 port valve with the actual valve control taken off. It doesn't seem to change between heating and hot water. Is this a programmer issue or a pcb issue sitting th boiler, it can't be much else, surely.

Thanks for any help in advance. I gave up last year and spent the whole winter with the Emerson on, paying for it now.
 

Riley

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When you remove the valve head does the spindle underneath move freely??
 

townfanjon

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Whos the pump manufacturer ?
Defo on rightway round lol ?
Valves open and clear ?
 

Harvest Fields

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Has the system been vented properly and as above, both pump valves open? 3 port wired in correctly? Could be a timer issue?
 

SimonG

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How about a nice picture of the boiler and valves.
 

garygvl

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you really need to get someone out who knows what they are doing as your posts dont say you do
 
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Could be possible that you have wired the 3-port valve incorrectly, also the programmer could be done for.

How about phoning a heating engineer, after all, that is what we are trained to do :)
 

Chuck

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How about phoning a heating engineer, after all, that is what we are trained to do :)
You've put this image in my head of a long chain of heating engineers, each one phoning the next for advice, until the last one calls the first and the circle is complete...
 

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