honeywell smartfit controller

Hi, Just looking for a little help and guidance on installation of a nest heating system. I currently have a conventional boiler system with hot water tank. I have a Honeywell Smartfit thermostat system; the wiring is basically specialised so not able to “plug and play” the nest system as it...

Good Evening, I'm not a plumber and I have little knowledge but I would be grateful of any advice. I have a Potterton Suprima combi boiler mated to a Honeywell Smartfit Y plan set up. We have had a problem with the room thermostat (a T8677A1008 7 day programmer) whereby it goes blank and we...