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display is not working as i replaced with spare one and it still didnt work. Think pump is running to keep at 7 degrees. Just wanted to know if it is still possible to have a faulty pcb if pump is running. Also complaints of water being too hot in the last week before it went off

display ok as i had a spare one but didnt work. Just thought if it was the pcb I wouldnt get power to pump,as usually boiler is dead.

any ideas anybody :?:

is connected and seems to be dry. But even if this is faulty shouldnt the heating or hot water still come on.Just pump running nothing else

Got a 3 year old isar he24. display not working (orange pcb) but pump is continuously running and that is all that is working. Any ideas much appreciated