then there is nothing wrong with the receiver, and if the boiler runs as you say then the wiring at the boiler is wrong too
Atag IC36 & Hive Thermostat
- Thread starter Ian_Rob
- Start date
Sponsored Links
D
Deleted member 267285
Try wiring the receiver using some cable and plug top, see if it works then.
D
Deleted member 267285
Thanks mate, iPad was playing up at the time, wouldn’t load pages properly
Sponsored Links
Then DO NOT connect L&1 on the hive, the existing 2 wires go to 1&3 on the hive, do NOT put 240v in there, it might be connected to 24V at the other end and it will be a very expensive mistake if you get it wrong
I'm afraid, that's the problem!
In the above image, the brown is live and the blue is switched live.
You don't currently have a neutral.
What is tricky - you would still measure 230V from the live, to the switched live.
If you can find where the cable connects to the boiler, you need to make the wire that wasn't connected (what you thought was switched live) into a neutral.
Post some photos of the connections to confirm.
I was writing the above as you posted - it is definitely worth checking, but as 230v was measured across live and switched live, I suspect it may be ok.
But again... Post some pics of the boiler connections!
Well I have just reconnected the Honeywell so that we have heating and hot water for the morning and thankfully it is working .
I will send some photos in the morning but I looked at the wiring connections yesterday and there is a 3-core cable connected to the L, N & SwL 230V control terminal blocks in the boiler (as attached image). The SwL is connected at the boiler but not at the Honeywell. The Earth isn’t used.
I will send some photos in the morning but I looked at the wiring connections yesterday and there is a 3-core cable connected to the L, N & SwL 230V control terminal blocks in the boiler (as attached image). The SwL is connected at the boiler but not at the Honeywell. The Earth isn’t used.
Attachments
Herewith some photos of the wiring inside the Atag boiler and the Honeywell that I took before I started.
As you can see, the boiler installer used the earth of the 3-core as a SwL and marked it as such with brown felt-tip at the boiler end only. This seemingly however was never connected at the Thermostat and just left bare.
Also, the Atag terminal diagram, marked-up with the wiring connections that I tried last night without success.
As you can see, the boiler installer used the earth of the 3-core as a SwL and marked it as such with brown felt-tip at the boiler end only. This seemingly however was never connected at the Thermostat and just left bare.
Also, the Atag terminal diagram, marked-up with the wiring connections that I tried last night without success.
Attachments
Last edited:
- Joined
- 11 Apr 2022
- Messages
- 771
- Reaction score
- 148
- Country
This all makes no sense. Maybe you have another faulty Hive receiver.
As I said, the blue wire in your CM907 is the switched live - if it wasn't, it would not work!
It appears that you have another junction between two cables somewhere.
OK. Something odd here. I will investigate further. Thankyou!
Something very wrong there if that was wired like that a trip would have activated or fuses blown, and could never have worked
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
