Hi all.
I would like to change my old analogue honeywell for something i can programme however i'm at a complete loss how to do this. My old thermostat has a four wire connection (see pic) and the new thermostat i'm considering appears to have a three wire configuration
https://www.screwfix.com/p/honeywell-dt90e-digital-room-thermostat-eco/41365
Could anyone advise please, many thanks.
I would like to change my old analogue honeywell for something i can programme however i'm at a complete loss how to do this. My old thermostat has a four wire connection (see pic) and the new thermostat i'm considering appears to have a three wire configuration
https://www.screwfix.com/p/honeywell-dt90e-digital-room-thermostat-eco/41365
Could anyone advise please, many thanks.