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  1. G

    replace timers with central heating programmer

    Hi All, I have an old, but reliable (thats done it now) Potterton Kingfisher gas boiler with a hot water tank and radiators on two floors zoned with Honeywell V4043 series valves. The rads and hot water are individually wired via a fused spur into three Landis and Gyr electromechanical...
  2. G

    Underfloor heating control unit goes blank, won't turn on

    I have had electrical underfloor heating for 4 years. 5 mats each with an Aube TH132 control unit and Aube PB130 base. The largest controls a mat of approx 21 sq metres and it doesn't work. When the control unit switches on after a minute or so the LCD display fades and goes blank, resets...
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