new thermostat help rt500

    Anyone help me to fit this thermostat , thought it was going to be simple based on reviews but seems my old stat has 5 wires not the common 2 wires


    Original Poster
    Old wiring

    Original Poster
    Old labelling

    Original Poster
    New thermostat

    Original Poster

    As you can see it only has L SL and earth any help appreciated

    The 1st pair terminals 1&2 are either not used or where for the ''Heater'' so I would suggest you put those wires in a connector block. The remaining 3 should be self explanatory I.e. Live , Switched live & earth. But whatever you do I suggest getting a Sparky to check it out 1st. HTH
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