Help with Drayton Wiring

[handaloo2]

It cycles for a minute then is just permanently on.

I think it's more likely to be my wiring tbh.....

Would I be better off just feeding it straight from the boiler rather than trying to repurpose the old programmer wiring?

Or just get a professional in and stop messing about....

 

[CBW]

Either of the latter, but it doesn’t explain it dropping out.

 

[handaloo2]

If I get some 4 core cable and just hook into these :



What would be your recommendation on removing the old programmers?



And would that work with the valves in place?

 

[RandomGrinch]

Have you been through the app setup on your phone?

 

[handaloo2]

Have you been through the app setup on your phone?

I have, got it all up and running but the heating wouldn't turn on.

Then it did and wouldn't switch off.....

Even got it added in Home Assistant

 

[RandomGrinch]

Can you show us a picture of your wiring behind the Hub R as it is now.
Your original photo showing a black connected to neutral is rather confusing, as all the connections seem to have been made by a competent installer, where black is the switched live throughout.

 

[handaloo2]

Example:

 

[handaloo2]

This is as of now and the video above. If I switch the grey and the black (as I would expect it to be) the Hubr is completely unresponsive

 

[RandomGrinch]

In your other thermostat, is there also a grey wire not connected to anything?

 

[handaloo2]

In your other thermostat, is there also a grey wire not connected to anything?

Yessir!

 

[RandomGrinch]

Your competent installer has left the grey wires detached from the neutral in the wiring centre.
The black with brown sleeve is a switched live to the boiler (Edit: through the 2 port valve), but due to the way it is connected through these components, it is currently acting as a neutral.
The safest way to continue - disconnect the black wire temporarily.
Connect the two grey wires to neutral in the wiring centre, connect the grey to N on the thermostat, and see if it powers on.
Photo to follow...

 

[RandomGrinch]

 

[handaloo2]

We have lift off....

 

[handaloo2]

Also zero cycling when trying to put the heating on (obviously no SL connected though)

Connect the black wire to 3 now I assume?

 

[RandomGrinch]

Connect the black wire to 3 now I assume?

Yup, that was proof we were going in the right direction, without the risk of blowing anything up!