Honeywell R6660D to Hive Receiver - not firing up boiler

[ferkh10]

Just decommissioned my old Honeywell system with a R6660D receiver that was connected up to the boiler (working perfectly). Wired it my new Hive receiver, hooked it all up to the thermostat and hub but it's not firing up the central heating on the boiler.

The green light is coming on on the Hive receiver to say that the heating is on, but its not firing up the boiler.

On the old Honeywell receiver I had the wiring as follows:
N - Neutral blue wire
L - live brown wire
A - empty
B - live brown wire
C - nuetral blue wire
D - empty
E - empty

I've mapped these over to the Hive as follows:
N - Neutral blue wire
L - live brown wire
1 - live brown wire
2 - empty
3 - nuetral blue wire
4 - empty

Any ideas why it's not operating the boiler central heating

 

[stem]

I think you have made a mistake with where the wires were originally connected. For the Honeywell R6660D to work there would need to have been a wire connected to 'A' as that is the input to the switch.

But you say:

A - empty

If 'A' was empty the Honeywell R6660D would not have worked. The terminals that should have been used are 'A' and 'B' not 'B' and 'C' as you say.

 

[Wildcat1961]

Terminal C would not have been used on the R6660D receiver, nor would it have been a neutral( should of been sleeved).
Terminal A would have been used in order to switch voltage through B.

 

[ferkh10]

Cheers folks. I took a photo before I removed the old r6660d. Definitely nothing in A & been working for last 8 years

 

[Wildcat1961]

The parameters were obviously changed from heating to cooling

 

[Dan Robinson]

The AB flex would likely go to VF terminals in boiler.

What you're all thinking is A on the R6660d is actually a blank.

 

[stem]

What you're all thinking is A on the R6660d is actually a blank.

I didn't think that. Otherwise the end terminal would be 'F'

Still back to why it's not working, you do have the single channel version of the Hive, don't you.

 

[ferkh10]

So for the technically inept (me) the brown goes to 1 and the blue goes to 2?

Yep, single channel hive

 

[stem]

Sorry ferkh10, ignore that it was a typo and unfortunately you spotted it before I deleted it. 'Common' [1] and 'Heating on' [3] are correct, can you confirm that you have the single channel version of the Hive. Ah, you have thanks.

 

[Dan Robinson]

I'm struggling to see how hard this diagram is to follow?

 

[ferkh10]

I'm struggling to see how hard this diagram is to follow?

View attachment 138350

It’s not, per my first post that’s how I’ve got it wired up.

 

[Dan Robinson]

 

[ferkh10]

OK, got this sorted now. Suspect the cover of the hive wasnt "seated" correctly on the backing plate - causing one of the pins not to connect properly (almost certainly pin 3).
Anyway, thanks for the help on this one all!