Australian Whitegoods Questions? Ask a Technician for Answers ASAP
Hi, welcome to Just Answer. My name is ***** ***** I look forward to helping you! Remove the knob and sprat some contact cleaner/degreaser at the back of the shaft where it goes into the switch body. Allow it to penetrate for a few hours and see if it then turns. If it does not, it is likely mechanically broken internally.