potterton suprima 50l fan

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    Suprima 50 - no power to fan

    Hi, I have a Potterton Suprima 50L which has had previous PCB issues but they were solved by resoldering the board and I haven’t had a lockout problem for >2 years. The bearings on the original fan went recently so I replaced the fan and the boiler was working fine. For about 48 hours. Now the...