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Now replaced the analogue with the digital one. As per SFK instructions. Tested the temp settings. All working as expected. Thanks for your help SFK. thanks dxtans

Thanks SFK, Your description and explanation is very lucid. I will attempt the replacement tomorrow and post back the results Thanks dxtans

Hello, I wish to replace my current room thermostat ( WS4) with a digital one. (Honeywell DT90E) But am confused with the wiring. I need help please. What needs to be wired into the new one. Thanks Dxtans Current: British Gas WS4 N: Black L: Brown 3: Grey ( plus earth) The DT90E has the...