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Recent content by charlieno

  1. C

    Heating intermittent

    Sorry, you are right it does have a microswitch. What I was confusing it with was the fact that the microswitch doesn't turn off the motor in the valve so it just sits there stalled while the valve is on. However, the microswitch definitely tripes, the pump runs and the boiler is on, and hot...
  2. C

    Heating intermittent

    The 2 port valve doesn't have a microswitch. Also, the boiler is definitely firing and pumping hot water - it just doesn't make it to the radiators.
  3. C

    Heating intermittent

    Thanks for the reply. It doesn't have a 3 port valve, it has two 2 port valves like this https://i1.wp.com/s1.manualzz.com/store/data/014547444_1-4f6a612d90096bed9e1eb528865f3fac.png?strip=all Honeywell V4043H. They have a manual over-ride lever so you can easily tell that they have opened...
  4. C

    Heating intermittent

    Hi all, I hope you can help! I had my boiler and pump replaced a week ago - new ones are Ideal Logic Max Heat2 H24 and Grunfos UPS4 GO. All seemed OK when it was installed (in place of an old, still working boiler and pump). However, each day the heating refuses to work. Often when it comes...
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