Can anyone help me with what should go where

Buffalojay

I started of thinking doddle this. Then I removed the cover on my drayfoss thermostat and saw an extra wire. The when I really looked at things there is no nc etc. On my old thermostat I have L N an earth and a black wire going to number 3. Can anyone tell me where they go in the tado wired thermostat?

Would really appreciate any help.

wateroakley

@Buffalojay best you can tell us about your boiler and controls, and add some pictures. Otherwise it’s a wild guess.

Buffalojay

Hi wateroakley thanks for getting back to me. Hope this helps?

Buffalojay

Worcester boiler will get the model. When I find the door of the front. This is what the thermostat looks like have no clue of model.

Buffalojay

Here is the thermostat