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Stem, Dan and others on this site give sound advice freely to us DIYers, everyday and it's much appreciated...just saying Ps, where is Agile?

Considered the work of the devil, that said, mines been in and working without missing a beat for the last 15yrs. Good points made by jj and nige, others my also offer other ideas.

This post is 5+ years old

I was saying what happened on the day. He did not say anything more then you have a wire missing, I read that by using the earth wire and doing some tests, it is possible. This it said, was because hive would not need this earth wire. If the BG engineer had explained to me your points 1&2...

Your lucky, when the BG engineer came to fit mine, he said their is a missing cable that controls the hot water off. Said he was unable to fit hive due to missing cable and left. I then read up and it appears hive receiver does not require an earth wire as its double insulated, thus with a...

Muggles , Is it possible to find out more about the difference in the energy savings, hive v nest?

Thanks Echo, the use of the old earth and ensuring its identified at both ends was also pointed out if possible by jack and is a good get out of jail card. I much appreciated the wiring plan you've posted and the connection info needed at the wiring centre/valve.

So, if I get to use one of the earth wires and that sounds possible, where do I make the connection to achieve hot water off in the wiring centure, or is it a bit more then that.

That's interesting Terry, I was told years ago that my system was a Y. Only have the single 3 port valve. The hot water is as per the Switchmaster and then satisfied by the cylinder stat.

Ok, will give that a try, thanks again, very much appreciated Pete

Ok, thanks, I will offer that as an idea. So using the earth wire, where would that need to be made off to make the " hot water off" possible in the wiring centure?

Thanks Jackthom, i would like to have the hot water off, gives me more control. Yes there is a wiring centure, looks a mess. It's next to the cylinder, 3port valve and pump. The wiring on the Switchmaster is x2, 3 core, one is Live, neutral earth, other also 3 core not 4 so no spare cable...

Switchmaster sm400

I'm thinking of having Hive fitted and before I place the order, I'm trying to find out if hive could be fitted as the Switchmaster sm400 appears not to have "Hot water off". This I think is needed for hive to be able to control the hot water cylinder . Mine is a Y plan Profile boiler balanced...

Hive

Might be worth you having a look at Boiler & Centrol heating FAQs number 12. With water in the F&E tank but not getting any water out of your rads, I be thinking blockage, expect you are too.

Looking at your picture, is that a universal backplate? If so, where can I buy a new one? Thanks Pete

Your hot cylinder should have a balancing valve, shut it in then reopen say half a turn. Reset your temp, now draw off a sink full of hot. Your boiler should kick in to try and heat the cylinder and at the same time your rad will get nice and hot. The boiler will continue to fire until the hot...

Your point No7 in the Symptoms : Remove the large silver disc in the centre of the pump. Will get a small amount of water leaking but should only be a little. Once removed, you might be able to see the pump spindle. With your heating/ hot water being called, the pump spindle should spin.