- Joined
- 17 Apr 2007
- Messages
- 2,494
- Reaction score
- 127
- Country
From what I've read, terminal 1 in the Honeywell thermostat should be permanent live and terminal 3 should be switched live.
My multimeter says they are the wrong way round. I've looked at the isolator switch wiring for the Vaillant Turbomax Vuw combi boiler. There's a 4 core into the boiler.
My multimeter says they are the wrong way round. I've looked at the isolator switch wiring for the Vaillant Turbomax Vuw combi boiler. There's a 4 core into the boiler.