WiFi Thermostat Install

[Nick Hodges]

I would say 217 volt too low to be a direct supply. AC has capacitive and inductive linking so a disconnected wire can show voltage with a high ohms per volt voltmeter, with the old AVO mark 8 I would measure using two ranges is voltage did not match then likely just due to linking not a positive connection.

Putting it simple guessing in no good.

So what not good? The wiring?

 

[Nick Hodges]

Grey and earth = 15

 

[Wannabebetter]

Unfortunately because of the 1st reading I wouldn’t take it for granted it’s a neutral wire. Might be time to trace it back. Sorry.

 

[Nick Hodges]

Unfortunately because of the 1st reading I wouldn’t take it for granted it’s a neutral wire. Might be time to trace it back. Sorry.

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