Recent content by lives1

just to confirm I found a little picture of the square inside the square as you said so no need for earth. Brilliant Won't actually be doing the upgrade until weekend so will have some light when supply turned off. Fingers xd - thanks for the great advice.

On the existing unit which is a potterton PRT100 also - I am only replacing as it looks dated and discoloured!!! Red is going to 1 (TL) Yellow is going to 2 (H) Blue is going to 4 (N) There is not a 5 mentioned on the existing thermo diagram!!! So if I understand on the new one this...

Sorry misread the last post. The inside of the existing thermostat does have a diagram which says: 4 N 2 H 1 TL I take it this means something to you?

Thanks for this - there is a picture of the existing wiring on the link in my original post. Wasnt sure how to get photos into main body of text. Would be grateful if you could have a quick look and let me know. Cheers

Hi, I am trying to replace an existing potterton thermostat with a newer looking version. However as I am a complete novice I am not sue which wires to connect and in what order. I have attached a link to some pictures of the existing wired unit, the new unit which gives options of 4,4,2 &...

Potterton PRT 100