Hive not firing up

[clevtrev]

Hi all

I just installed my hive thermostat. I got the one for Heating and Hot Water Control (Conventional Boiler).

I am replacing an old timer ( Landis and Staefa) that controlled the gas boiler based on a timer only but with no thermostat. (the hot water tank is upstairs on an immersion electrical timer). The timer was wired to operate the heating with the boiler but there was no wiring for hot water although the back plate had these wiring sockets also. So layout seemed to be the same as the hive with Neutral, Live, 1 (hot water off), 2 (heating off), 3 (hot water on), 4 (heating on).

I did no rewiring as it was a simple case of removing the old timer cover and replacing it with the hive receiver cover as they both have the same backplate layout and size. The receiver immediately connected to the hub etc and all seemed fine. I also set the hive receiver to gravity-fed. The problem however is that the boiler is not turning on. If I press the on switch on the receiver it goes green and it thinks it is operating correctly but it is not triggering the boiler to come on. If I put back the old controller all works fine again. Any ideas about what could be the issue?

 

[Stuckinarut]

Can you show some photos of existing programmer and wiring for hive?

 

[clevtrev]

Hi, here is a picture of the wiring and back and front of old-timer RWB-7 Siemens Landis and Staefa which is the same size with the same number of gold contacts as the hive. I turned off the gravity-fed option as the system has a pump

 

[clevtrev]

this a picture of the back of the hive which I am not using

 

[Stuckinarut]

Ok, so you have a single channel time switch and replaced with a dual channel programmer. It appears you have left the link in (which is required for the existing one) which on the Hive is Heating off. Remove the link and see if it works.

 

[clevtrev]

thanks for the update - I will try that over the weekend and report back