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Thanks Rob, I did as you suggested. It seems that perhaps the motorised valve is faulty (or not wired correctly), as the return from the blue valve gets much hotter than the flow to the red. The motorised valve does not seem to actuate (the lever remains loose). The pump comes on straight...

Hi Guys, I wonder if somebody could give me some advice, please? I've had an extension built, and as part of the project, I had the boiler moved and a single loop underfloor heating fitted to the new extension ground floor. It seems to me that the UFH flow and return is mixed up. From the...

Just a bit of an update. I went to connect two new wall lights to the new circuit that the builder put in. They are in the original bedroom, so don't form part of the extension. Before I connected them, I isolated the "upstairs lights" and checked for a live wire. My meter told me that it...

Hi guys, I wonder if anybody could give me some advice, please? I am a homeowner, and I have just had a two storey extension done. My builder was recommended by my architect, and the work has gone through building control. I have an issue with the electrics. To cut a long story short, the...

Hi all, Thank you for all of your help. I've tried to do as many f your suggestions as I can. I can't take a useful picture of the loop pipe as it joins the system under the only par of the downstairs that is still carpeted, and all our furniture is in that room. However, today I checked the...

Sounds like a good idea. I’ll give that a go, thank you

BTW I know that there is a lot of air in the system, I can hear it at the pump, but none of the radiators have air in them.

Correct on both counts. One of the radiators is starting to heat up, but not very quickly. The other is stone cold. While the system was drained down yesterday, the builder came in and blanked off a pipe that was looped together. That was for a radiator that has been removed and not to be...

Tried that ,but no change. Hopefully the Heating Engineer will answer me soon. It's a bit chilly tonight

Thanks. I’ll give that a go

Hi, The rads did work before, but never seemed to get as hot as upstairs. He only recommissioned the boiler ( I think that was all the builder paid him to do, and it was getting late when he finished 18:30). The F&E tank has water, and there are no other valves up there. He didn't go anywhere...

Fair enough. I have phoned, but no reply, so I have sent him a message. I just wondered if there was anything I can try in the meantime.

Hi guys, I am having an extension added to my 1930's house. The builder has installed pipework for radiators and towel rails, upstairs and downstairs. Yesterday a heating engineer Gas Safe), came to move my boiler. I don't have any concerns about his work. However, I can get heating...

Here are the pics //media.diynot.com/18000_17731_21371_74993859_thumb.jpg //media.diynot.com/18000_17731_21370_57682350_thumb.jpg

Hi Stem, Thanks for replying. The Honeywell has four terminals, numbered 1-4. It is wired: 1=Black 2=red and 4=green. I thought that the earth wire may not be used as an earth wire, but may be used as something else (just from what I read on this forum elsewhere). I thought this...

Please can anyone help me? I am replacing an old Honeywell Room Thermostat (no model number on it) with the Theben 701. I have three wires in the old stat, red, black and earth. Reading the posts, I suspect the earth may not be an earth wire. Can anyone tell me where the wires should go in...

I'm replacing a very old loo. I have taken the old loo out, and the connection to the sewage system has a metal collar that is raised about two inches and has an inner softer metal collar which is cemented in. I have a Multiquick collar. Is it ok to just take the old metal collar off and...