Our water is fine and we are getting hot water but there is no central heating and believe it is a problem with the thermostat
We have a Honeywell thermostat, think that it needs to be rewired maybe the wires are 2 red 2 black and 2 brown - the 2 brown are fastened together. Does anyone know how I can rewire these so that my thermostat will work please??
There are 4 pins also
Any help is grateful thanks!!