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Hi folks, just changed a single rad for a double in the kitchen. Switched boiler off ( gravity fed) drained water from system. Took the old rad off and fitted the new one. Refilled the system bled downstairs rads first the the up stairs ones. Switched on the boiler, then the heating and it fires...

I`ve just looked up TRV and yes I do have one but only on 1 rad of the 2 in the downstairs bathroom. Before I call anybody in as my son is very ill and we have to totally isolate I would like to try and sort it. Also the rads that don`t work are the ones in the dinning room and living room, if I...

I just turned the rads off as I don`t know what balancing the system means and also I don`t know what TRV`s are.

Still need help ! As I stated earlier all was working well, next time heating set to come on all rads cam on apart from the same two as before. Switched all working ones off again and started heating the two worked switched others back on and the next day when the heating came on on timer the...

Did as you guys suggested with the rads and all works perfectly. Cheers for that. As for a system boiler i think I was totally wrong , as I`ve got a hot water tank fed from a header tank and the pump I replaced is in the airing cupboard next to the tank. Once again thanks Guys

Hi folks, got what I think is called a system boiler. It fired up for hot water and heating but then cut out within seconds. Changed the pump ( a lot of water came out even though I had tightened both isolation valves above and below pump ) All is good with heating and hot water now. Only...