glowworm combi no hot water

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    • #278075

      on occasion i get no hot water from this combi boiler.
      but if i put the heating on for a few minutes the hot water then starts to work.
      on one occasion you could hear a microswitch flicking on and of and the burners switching on and of.
      could it be the pressure switch?

    • #297650

      try replacing the diapragm washer in the diverter valve. The washer costs a few pound and takes between 1/2 hr and 1hr to replace. Be careful of the springs inside !!!!!!!

    • #297651

      thanks for the answer to this problem it worked a treat

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