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  1. S

    Controller problem?

    Just remembered neighbours have same programmer substituted and found mine was faulty! Sorry to bother you!
  2. S

    Controller problem?

    No DHW pump turns ok, CH works, motorised valve turns with fingers Programmer has very loose slider for DHW could this be the problem? Boiler is a Potterton Suprima 80, programmer is a Potterton EP2000. I have managed to get DHW by setting room thermostat to max and removing motorised valve...
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