Honeywell to Hive

[Simbadiy]

Hey all, seen this thread a few times and used the advice to migrate across.

I am now in the position that the hot water remains on and the heating turns on, at the boiler but doesn’t actually heat the system. It only flashes.

Must be due to my wiring, im thinking of wago connecting the random two red wires on the live.

Boiler is vailaint ecotec plus 428

 

[RandomGrinch]

The wiring looks ok.
What model was the old Honeywell?
...And silly question, is this a dual channel, or single channel Hive?

 

[Simbadiy]

Dual channel hive, I bought the combi boiler one before, I have a hot water tank etc

Good question I never checked before binning it

 

[Simbadiy]

Looks like this one

 

[CountryFan]

What type of motorised valve(s) do you have? Is there a thermostat still in the property and if yes, set to maximum?

 

[Simbadiy]

What type of motorised valve(s) do you have? Is there a thermostat still in the property and if yes, set to maximum?

I did suspect there was a controller hiding somewhere, I guess if I wago the two red wires in live that will kill off the interference?

I have taken photos of the mechanicals

 

[stem]

Looks like you still have the Honeywell BDR91 receiver connected. Hive has its own room thermostat, so the old Honeywell BDR91 isn't needed.

You can't just remove it though otherwise the heating wiring will be left 'open circuit' and the heating won't work. So, as per @Stuckinarut you could leave the old Honeywell thermostat in place and set it to be permanently on 24/7, but you will have to maintain its batteries for time infinitum.

Or, you could decommission the old BDR91 receiver by joining the wires that are presently in terminals A&B together. You can also isolate the mains supply to its N&L, then it won't be using power unnecessarily.

 

[Simbadiy]

Looks like you still have the Honeywell BDR91 receiver connected. Hive has its own room thermostat, so the old Honeywell BDR91 isn't needed.

You can't just remove it though otherwise the heating wiring will be left 'open circuit' and the heating won't work. So, as per @Stuckinarut you could leave the old Honeywell thermostat in place and set it to be permanently on 24/7, but you will have to maintain its batteries for time infinitum.

Or, you could decommission the old BDR91 receiver by joining the wires that are presently in terminals A&B together. You can also isolate the mains supply to its N&L, then it won't be using power unnecessarily.

I dont suppose without cracking out the tester there is a way to know where and which cables to remove? I could open the boiler panel and see what feeds that and just remove the others?

 

[stem]

You can simply remove the BDR91 and replace it with a junction box.

Put the wire that is now in BDR91 L into one terminal
Put the wire that is now in BDR91 N into another terminal
Put the wires that are now in BDR91 A&B together into a third terminal

 

[Simbadiy]

You can simply remove the BDR91 and replace it with a junction box.

Put the wire that is now in BDR91 L into one terminal
Put the wire that is now in BDR91 N into another terminal
Put the wires that are now in BDR91 A&B together into a third terminal

will give it a go thanks

 

[Simbadiy]

You can simply remove the BDR91 and replace it with a junction box.

Put the wire that is now in BDR91 L into one terminal
Put the wire that is now in BDR91 N into another terminal
Put the wires that are now in BDR91 A&B together into a third terminalI have h

 

[Simbadiy]

I have heating! it worked, thanks