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  1. scotrock

    Grant vortex not switching on

    Hi, Can anyone help with this problem? On boxing day my Grant Vortex combi 26 shut down it turned out to be the CH PCB which was replaced. Since that was done the boiler will not turn on with the timer I have to turn the store switch off for approx 3-4s then on and after 15s the boiler will...
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