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Worcester 350 combi boiler no CH, hot water OK

Discussion in 'Plumbing and Central Heating' started by Worcester350man, 17 Jan 2010.

  1. Worcester350man

    Worcester350man

    Joined:
    17 Jan 2010
    Messages:
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    Thanks Received:
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    Location:
    Lancashire
    Country:
    United Kingdom
    Hi

    I have a good old Worcester 350 combi.

    Hot water working fine, system has been drained, cleaned with Sentinel X400 and inhibitor X100 put into system.

    Recently had new Thermistor fitted and flow switch kit (diverter valve?).

    Problem is:- Central heating will not work at all, but hot water works fine. I do not think it is diverter because that is brand new.

    Can anyone please advise why CH is not working?

    Any advice would be appreciated.

    Thanks
     
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