Search results

In the the boiler itself? The thermostat is in the living room, boiler in the kitchen.

Grey and earth = 15

So what not good? The wiring?

Okay so I’m getting 217v between brown and grey wire.

Test using a multimeter? Or wiring in?

The unit I have can come in different variations including underfloor heating, but I’ve been assured this one is for just heating.

Okay, so I think it may have something to do with the fact that my old thermostat was battery powered. Would this mean there is no live?

Thanks, I’ll give it a test in the morning.

Thanks for your reply. This is the diagram I was told to follow and the old thermostat housing. With this configuration, the new thermostat just blinks on and off.

I’m wanting to replace my original Honeywell thermostat for a WiFi one but I’m stuck on the wiring. I have a grey, earth, black (with brown sheath) and brown wire. Im told the new thermostat only requires a live and neutral, with a possibility of needing to bridge across 2 connectors. The old...