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Systen pressure is fine and no fault codes showing. I have cheked the board fuses and the gas valve controller fuse, they are all okay. I don't seem to be getting voltage from the board to the fan or pump. Overheat limit switch has been checked and is okay as well.

No. Pump doesnt do its 30sec run on power up, no heating ot hot water. Gonna have to call an engineer me thinks.

Does anyboby know what a J1 fault is on a Jaguar 28? As soon as I power up my boiler I get J1 fault. Cheers Leodis41