Installation of Hive thermostat

[Angelay]

Any help would be appreciated, I’ve replaced the receiver from the existing thermostat , the back plate was the same as the hive back plate. Switched on fine , paired ok with green lights but for some reason heating does not fire up.  Any ideas what could be the issue. 

 

[Rob_the_rich]

Hi Angelay, probably one, or possibly more, of the wires is in the wrong place. What is the make and model of your old wireless thermostat?

 

[Barx]

A picture of back plate and boiler make / model will help things along.

 

[Andy™]

just because the backplate is the same doesnt mean the wiring terminals are the same. did you read the diagram for the old one and compare it with the new to make sure they were wired the same?

 

[Angelay]

A picture of back plate and boiler make / model will help things along.

Hi its a centaurplus C27 by Horstmann

 

[Rob_the_rich]

I would guess that one of the black wires is going to the old room thermostat, which is turned down. You can test this by connecting the hive to the back plate, turn heating on with hive then turn up the old stat and see if heating comes on. We would have to see how the old stat fires the boiler before advising how to disconnect it, but at least you would have ch working.

 

[Angelay]

Hi Rob, 

there is is no room thermostat, which I why I’m going to the hive to try and give the boiler a rest as once it goes on it doesn’t stop until the time in it switches off. 

Ive put the program thermostat old one back on and boiler works fine. 

Some where there here must be an issue with these wires I did awhile back put the tado thermostat and that worked fine. 

Thks 

 

[Andy™]

you still havent answered my question. did you read the diagram for the old one and compare it with the new to make sure they were wired the same?

 

[Rob_the_rich]

Ah ok, where do the two cables which are in the backplate go to? please post pics of boiler, cylinder cupboard pipework and wiring centre if possible.

And make sure you have switched everything off before removing covers. Preferably also the main switch in the fuseboard.

 

[Andy™]

Ah ok, where do the two cables which are in the backplate go to? please post pics of boiler, cylinder cupboard pipework and wiring centre if possible.

And make sure you have switched everything off before removing covers. Preferably also the main switch in the fuseboard.

no point taking photo's of boiler etc, if the OP would bother to do what i said the problem will be obvious.

hint, hive doesnt use 3&4... (at least not on the diagrams ive looked at)

 

[Angelay]

you still havent answered my question. did you read the diagram for the old one and compare it with the new to make sure they were wired the same?

you still havent answered my question. did you read the diagram for the old one and compare it with the new to make sure they were wired the same?

Hi I did but thought keeping the old plate would work bit confused on connections 1 and 2

 

[Rob_the_rich]

The connections seem to be the same Andy, https://www.tlc-direct.co.uk/Technical/DataSheets/Horstmann/HOC21-C27_installer_Old.pdf

and https://bucketeer-e9a3f077-0ec6-47cc-a7da-226f8fd8c41c.s3-eu-west-1.amazonaws.com/public/img/attachments/Hive_Thermostat_Installation_Guide-d5cf9bf693e5ad8f4d01a9e6edbaa46c9c2cbfbfbea01f61b7cc8a85a67a4337.pdf

3 is hw on

4 is ch on

 

[Andy™]

diagram i found shows 1 as common switching to 2&3

 

[Rob_the_rich]

ok pics of back of old programmer and of hive wiring instructions please 

 

[Andy™]

well you are right about the old programmer, but since we dont know what new one the OP has and we have both found different diagrams... (the link you have has 2, one of which should be a direct swap, the one i found only had the single channel one with different wiring)

 

[Angelay]

Sorry it won’t let me upload any images of the diagrams, I seemed to have maxed out my upload capacity!

 

[Rob_the_rich]

upload to somewhere like dropbox, then post the link here

 

[Angelay]

Manage to resolve the issue by move 3 to 1 and that worked! 

 

[Barx]

Out of curiosity, is it a dual channel hive you have or a single?

 

[Angelay]

I have a single channel as I have a combi boiler