Search results

A heating engineer came out last week to service the boiler and I told him about the problem and he was kind enough to have a look but he admitted he had never seen a nest system before but it seemed to him that the yellow wires were the wrong way round at the heat link. I swapped 4 and 6 over...

Will do Stem ironically it hasn't done it for a weeks until last night but I was to tired to start running round with the multi meter.

The wire from the pump goes straight into the wall so it will take a bit of investigation to find out where it goes after that but I'll do my best.

I have to agree stem it must be something I've done wrong somewhere. I'll do as you say and start at the cylinder stat to see how it's wired and check a few other bits that I can but I'm thinking it's going to be a call to British Gas as I really don't want to start going into the boiler...

Last night the pump was running again but the radiators and water tank were cold, I turned down the tank stat and the pump stopped but after I turned it back up the pump started again and the boiler fired for a few seconds and then stopped. So basically the pump is running without calling for heat?

So I've had a multi meter across the terminals on the heat link and this is the result: HW CH off 2,4,5 240v 3,6 no power HW on 6-240v 3 no power CH on 3,6 240v So I'm guessing the Nest is working as it should, now to trace the wires. Pump didn't cut in last night so I couldn't see if the...

The radiators are not heating up as for the water I'm not sure I can't hear the boiler from the bedroom and have been turning off the pump from the stat before checking to see if the boiler is firing but in my sleepy state I don't remember thinking the tank was hot but that's no guarantee...

Hi Tony the boiler is in the kitchen and it's a Potterton Prima F but I'm no heating engineer so I don't know how the pump is wired to the boiler. Sorry. I don't have a frost thermostat that I know of Stem where would it most likely be located? Besides I have a wife so the house is never really...

It is a possibility but when I turn the hot water on the boiler fires no problem and it's the same with the heating, it's weird everything works as expected, from the phone app to the room stat and the manual control all works perfectly?

Sods law I've left my multi meter at work and I'm wrong about the HW off wire it's the CH off wire that I don't have sorry for confusion. I'll check the wire feeds when I get back from work.

I'll check that now thanks stem. Just to clarify there shouldn't be a permanent live to the cylinder stat until the water is on or is it different from home to home? Yes Agile the pump doesn't run continuously it just starts up of its own accord?

Thank you for the quick response stem, I have 3 connections leading to the motorised valve which lead me to believe is was a Y plan system plus I can't see another motor anywhere else on the system but if it is a s plan system I'll definitely check the wiring again.

Hi diynot Last week I did a diy install of the 3rd gen Nest thermostat replacing my programmer with the Nest heat link and from my understanding I have a Y plan system which is how I wired it in following the manual instructions. Everything is working fine you will be pleased to hear but the...