12-27-2013, 07:50 PM
Have you tried any penetrating lubes such as Liquid Wrench?
Of course you have to be able to get the stuff from behind so I am not sure what your situation is, but you still might using that thin plastic straw get the lube in.
Some heating/cooling cycling might work but one should be careful so not to damage the knobs.
Have you tried light tapping around a knob?
Of course you have to be able to get the stuff from behind so I am not sure what your situation is, but you still might using that thin plastic straw get the lube in.
Some heating/cooling cycling might work but one should be careful so not to damage the knobs.
Have you tried light tapping around a knob?
