Trv combi boiler

[karlhayes]

I have a leaking TRV on a combi boiler heating system, do i have to drain the system down to repair or can i isolate the water in the rad?, the rad is down stairsand i don't have any pipe freezing equipment Thanks

 

[villa_tom]

Whers is it leaking? if its on the nuts then can you just not tighten it in situe without draining?

 

[Barry98]

also have the heating on so the valve is hot when you tighten it

 

[karlhayes]

it's leakink going into the rad

 

[WaterTight]

If it a very small weep you could try drying thoroughly and dabbing on some lsx.

 

[karlhayes]

Whers is it leaking? if its on the nuts then can you just not tighten it in situe without draining?

it's leaking going into the rad

 

[Nat]

If it's on the nuts or tails between the valves and the rad (on the horizontal) and giving it a nip doesn't help you can turn both the valves off, isolate the rad, and drain the rad by cracking the nut and catching the water in a tub. Then if its leaking on a compression joint try smearing a bit of jet blue on the olive. If its the tail, take out and put 10 or do turns of ptfe on it and wind it back in.

If its on the nut between valve and copper pipe and giving a good nip doesn't help its a drain down I'm afraid.

Good luck with it mate.

 

[fuzzy]

dont be lazy, drain down fix properly and refill with new inhibitor

 

[Gray0689]

dont be lazy, drain down fix properly and refill with new inhibitor

Bit over kill for a leaking tail!!

 

[desrob]

Bit over kill for a leaking tail!!

agree if it's the tail,just shut valve,drain rad take out tail,ptfe and replace

 

[Nat]

dont be lazy, drain down fix properly and refill with new inhibitor

Don't see it as being lazy if It's unnecessary to drain down the whole system plus you don't need to go to the expense of buying inhibitor.

Could be that the leak is on the wrong side of the valve and then you would need to drain down.

 

[yorkieplumber]

Take pressure off system and fix it live no problem at all, just need a towel around it to mop up a bit off water.