OK, after blowing 3 fuses I now admit defeat & need some help
Trying to replace an old dial style room thermostat for a programmable Digital type. Run of the mill gas heating boiler, that heats water via Hot Water tank, & central heating .... so gravity fed system.
Here is the current wiring for thermostat
where it's wired 1) Red (L) , 2) Yellow (Load ?), 3) Earth, 4) Blue (N). This all works.
I thought this themostat might be suitable :-
Horstmann Centaurstat 7 Programmable Thermostat - Screwfix.com, Where the Trade Buys where there is a PDF of manual, with page 2 showing wiring configuration (2.7MB)
Anyone with Electrics knowledge, able to advise if this thermostat should work ?