Recent content by JH605

Oh OK, so the single channel Hive is low voltage for heating, but the dual channel Hive is 240v for both heating and hot water? So a single channel Hive could take the existing thermostat wiring from the 'PT plus' and just add the 240v power supply to it? I guess this is better than the current...

I was thinking of bridging the current thermostat wiring and transferring the current built in timer wiring to the Hive due to this using 240v. I figured there would be a way if the built in timer currently sends a 240v signal to the boiler for both the heating and hot water. I believe the Hive...

I just wanted to bump this thread as it went quiet over Christmas, so I parked fitting the Hive until the new year. Any thoughts on wiring as per my previous post (17th Dec) would be very much appreciated.

Thanks for the feedback. I understand the modairflow is not currently working as designed but the current set up has been running for years now (before I was educated). I guess it won't maintain the temperature within 0.1 degree as has been suggested and may be up and down a little around the...

True. One of the leads has broken though. I could have bodged it but decided it was a good time to replace it with a better one that would be safe. Curiosity got the better of me while waiting for the delivery!

I decided against using my budget multimeter for mains testing and ordered a mid range one last week but still waiting for this to arrive. I did however do a rough check using a neon screwdriver. The main board thermista stat terminals 4 & 5 showed nothing for on & off. The built in timer...

The BG thermostat is just wired to the existing wiring in the front room which connects to the main board as circled in red. I can check with a multimeter at the weekend. It looks like this connection Is intended for the thermista stat to allow the boiler to run the 3 different on conditions...

The original 'thermista-stat' was just a dial with no temperature markings. This has been replaced by the newer one shown below to allow the heating to be programmed independently. I think this just clicks on or off to maintain the temperature but maybe this is not how it is meant to work with...

Thanks for the quick reply. Yes it is a modair variant. Could you explain what the problem is with a modair variant?

I have a warm air heating system (Johnson and Starley Hi Spec J50) with a hot water tank. This has a built in single timer control for both hot water and heating with a wired room thermostat. My current set up is the hot water controlled by the built in timer with the switch in the ‘timed...