How do I free up a stuck volume control?

I have had luck heating the shaft of stuck controls.

Assuming it is a metal shaft, remove the knob and hold a soldering iron to the end. Keep checking for movement as it heats up and don't get carried away.

I use some Teflon dry lubricant to keep it free.

Ken

Let is soak with WD40 then once it is free spray it with tuner cleaner to remove the WD40.

Is this a motorized volume control????