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Sorry I should add the following: HW is from a sealed system with Ideal Classic boiler with header tank in bedroom cupboard just above cylinder the bottom of which is roughly level with the location of the bath HW supply gate valve. Have tried to turn, tried applying WD40 to spindle and a...

Well I can't say for sure as its not been used for probably 8 years! But I can say that the flow was fine until recently so if its not moved then it must be OK. Is there any other way I can valve off the hot supply. The cylinder is in the next room and I see another Gate Valve on the pipe...

so you guys say I'm shafted and need to replace valve? Any other ideas - it's not easy to get at to change and my missus loves a hot bath!

I am trying to check my hot (mixer) bath tap (which is running slowly) and want to isolate the hot supply. The valve is brass with a Red wheel but I can not move it more than a 10th/turn either way. Any thoughts or ideas how I can free this valve - I want to check washer/change body of tap to...

Is there anything I can do (as a non plumber/electrician) until such time as I can get an expert? Is it safe (and dry) to take the cover off and se the problem - ofcouse isolating the power? Or is it just an expert job full stop?

I have a sealed system with an Ideal Classic boiler. Quite frequently, but not always, the pump continues to run after the CH & HW is not called for. When this happens, it is not overrun as the pump just keeps on going and going. I have to fiddle with the switch on the top of the Motorised...

reduced flow on bedroom rad but had no affect. should i reduce flow on all other rads or try something else? BTW the TRV's are bi-directional (they have arrows pointing both ways on valve body) I think.

pipes are not visible but it might be possible that there are longer runs. I'll try it tomorrow and let you know. cheers for now.

Do you mean turning LSV anti-clokwise, then no. Is it worth a try and if so what would you recomend as "slightly" - how many turns? BTW the cold rad is closer to the boiler than the bedroom rad. thanks for your promt response.

RAD is about 6 years old and it is in an extnesion so was added to my system. It has worked previously but never really been independent. Recently though no heat hardly at all.

I HAVE A RAD IN SHOWER ROOM THAT IS ALWAYS COLD. I CAN GET SOME WARMTH IF I INCREASE THE TRV SETTING IN BEDROOM NEXT DOOR. FEED PIPE (TO LSV) IS HOT BUT TRV (RETURN SIDE) IS COLD. HAVE FULLY OPENED LSV & TRV. TRV PIN IS NOT STUCK. I THINK THE SHOWER ROOM IS SPARRED OFF OF THE BEDROOM PIPES. ANY...