Any electricians here that can help with wiring a themostat?
Found 17th Dec 2014
My thermostat is playing up so thinking of getting a SALUS RT300. Currently my thermostat has a red, blue and yellow cable connected to it and an unshielded cable that just seems to have been buried into the wall so not in use. The wiring for the new one is in the picture so wondering what cable would go where.