can't turn oven thermostat

[dkorb1]

Hi, I was wondering if there is a way to unstick our oven thermostat (Tappan gas oven) The part costs about sixty dollars, not bad , but if we force the knob with a wrench the oven still works fine. Why did the knob suddenly become impossible to turn? (this happened overnight- one day it was fine, the next,stuck.) Even when we took of the knob,not easy, and use a wrench this thing is really hard to move. we're afraid that well get it to turn on but not be able to turn it off.

[lee houston]

i'd try some small spurts of wd40 at the base of the shaft as it enters the control would work best if oven was laying on its 'back'. couldn't hurt, tis a mechanical device. It may be a rubber o-ring breaking down.

lee

[dkorb1]

[dkorb1]

[dkorb1]