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  1. S

    Honeywell T40 wiring

    Thanks for all the advice....I will be sure to post my results as soon as I've got around to fitting it
  2. S

    Honeywell T40 wiring

    will do ! - I only meant will it melt and drip down the wall or blow my boiler up.
  3. S

    Honeywell T40 wiring

    I will check that later. Thanks. Just out of interest, whats the worst that can happen if it's not suitable and I wire it as advised?
  4. S

    Honeywell T40 wiring

    Thanks again, I might need to return it then Steve
  5. S

    Honeywell T40 wiring

    Hi. Thankyou so much for the quick reply, the search feature did bring up similar but I wanted to be sure. This is the new one - it dosent mention mains suitable so was a bit worried -Thermostat thanks Steve
  6. S

    Honeywell T40 wiring

    Hello, I'm looking to replace my thermostat with a digital one that can be programmed. The current wires are- Earth on the left Blue on term 2 Yellow on term 3 4 not used Red on term 5 My new thermostat has only 3 pins to connect - it has the number ME83H, I think it's a generic one as there...
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