Replacing old Honeywell T40 Thermostat with Tado
Posted: Tue Nov 17, 2015 7:33 pm
Hi there,
I'm trying to replace an old Honeywell T40 thermostat with a Tado.
Slightly confused by the change in labels on the two thermostats and can't seem to get it to work.
I have a basic combi boiler with no control box or anything, which was hooked up to a Honeywell T40 with three wires in this configuration:
The wiring diagram for the new thermostat looks like this:
Can anyone put me out of my misery?
I'm trying to replace an old Honeywell T40 thermostat with a Tado.
Slightly confused by the change in labels on the two thermostats and can't seem to get it to work.
I have a basic combi boiler with no control box or anything, which was hooked up to a Honeywell T40 with three wires in this configuration:
The wiring diagram for the new thermostat looks like this:
Can anyone put me out of my misery?