thanks for replies i think the old one is a 15 year old honeywell ,not too sure as i am on nights ,it does still work however as i put it back on whilst i found out some info its just a little bit dated looking.
Hi decided to replace my old wheel type thermostat with newer one of the same type (differant make), the wires in the back of my old one are .
1=red
2 =red
3=earth yellow & green
4=black.
fitted the new one the same following the numbers but just blows fuse ,it says in the...