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How do i restart my myson midas sfi boiler?

I have replaced a new pcb 404c656 main board in my myson midas sfi boiler. What is the re-start procedure?

K Riley
November 2009
I would have to say that if you can diagnose a PCB fault on a Midas and replace it you should be able to commission the boiler. The Midas is well past its best and was a over complicated expensive combi.

Northern soul
November 2009

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