Web24 de ene. de 2024 · The problem is that the stem packing seal has welded itself to the valve stem, preventing it from turning. The fix is use an adjustable wrench to loosen the stem nut just enough to break the bond so you can turn the knob. When you’re done, simply snug up the stem nut and make sure there’s no leak. 7 / 10 Family Handyman Web434K views 6 years ago How to repair and fix a leaking radiator valve, pipe or TRV without the need for a plumber. All you need is a roll of PTFE, something to catch a bit of water …
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