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    biasi m90E 28s boiler fault.

    They are all on mate. I have found something weird this morning tho. I don't know what the part is called but underneath the divertor valve their is a green plug that when unplugged and re onnected it fired the boiler up but only when I rapidly tap it back together. Hope that makes sense. Any...
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    biasi m90E 28s boiler fault.

    Hello, This is my first post on here so sorry if I dont provide all of the info you need. These are the symptoms: DHW is working no problem, unfortunately the CH just is not working. I have taken the cover off and checked to see if it is anything obvious but sadly not. Whilst I have...
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