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  1. G

    Wall CH Thermostat died and blew fuse, now replaced but have HW issue..

    OK, I have a Back boiler, Pumped CH and Gravity Hot water system. Controller is a Horstmann H21 the other week I found that the fuse to the system had blown, and after killing a couple of fuses I found that the wall Thermostat had died. Replaced that and thought all was ok, but have since...
  2. G

    hot water only works when heating on?

    Hi... As the title says really.... The hot water just doesn't appear to work unless the heating is on at the same time. Boiler is a Baxi Bermuda 552. A back boiler with an oldish gas fire on the front. hot water cylinder is in a cupboard almost directly above the boiler/fire, and tanks...
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