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    Re-Wiring Boiler Programmer - Expert needed - Pics Included!

    Right I'm modernising my Kitchen, I have an old grey boiler programmer that I'd like to swap to my new programmer. My old Programmer is a Potterton EP2002 My new Programmer is a Honeywell ST9400C I read on a forum that it is possible to change over, however I didn't realise so many wires...
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