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Hi guys Anyone got the wiring changes to hand when changing these for a Honeywell 3 port. I've done hundreds in the past but not for a while and don't fancy having to plough through tracing all the wires in the junction box if someone has the handy wiring change guide to hand. Thanks in...

Manufacturer in the country? Or is just my perception that their boilers are crap and their backup, technical and overall setup absolutely appalling