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Damaged Honeywell programmable thermostat

Jet
Jet Posts: 1,649 Forumite
Part of the Furniture 1,000 Posts Photogenic Combo Breaker
in In my home (includes DIY) MoneySaving
My thermostat is damaged and needs replacing. 

This might be a stupid question, but if I just buy a new one, will it just work or does it need to be linked to the combi boiler somehow?  If so, can a layperson do it, or do I need a heating engineer?  The model is Honeywell T3R.

Thanks.

Comments

  • QrizB
    QrizB Posts: 19,152 Forumite
    10,000 Posts Fourth Anniversary Photogenic Name Dropper
    The T3R looks to consist of two parts; the bit with the display, and the bit that's wired into the heating system.
    The two parts are paired so (unless there's a way to repair a replacement) you'll probably need both.
    Fitting the wired part looks no more complicated that wiing a plug, but will involve bare wires. If you're not comfortable with DIY, you will probably want an electrician (although a heating engineer should also be capable).
    You'll find instructions here:
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