Thanks very much for your responses that makes a lot of sense now. Not sure why the valves are of a different make, nothing has been changed until now
Curious about the ‘hot water only’ label on the Honeywell box… is it a problem that they have connected this to control the heating?
I have no hot water, could anyone help me troubleshoot? Many thanks in advance for any help. See photo attached of my set up.
1) I have a system boiler + unvented cylinder all new installed about 9 months ago.
2) Heating is working fine - turning up temp on Nest app fires up the boiler and...
I would like to replace this 3 wire wall light with this other one which only comes with 2 wires. What do I do with the earth wire coming from the wall in the new fixture?