Oven selector knob is loose, skips positions, or does not register mode changes.

Safety: Disconnect power before removing the control panel or knob.

• 1. Inspect knob: Pull off the knob and check for cracks in the plastic hub. Replace the knob if damaged.
• 2. Tighten selector mounting: If the selector shaft wobbles, remove the control panel and tighten the mounting nut or screws.
• 3. Test rotary switch: For mechanical switches, use a multimeter to verify continuity changes across contacts as the switch is rotated.
• 4. Replace selector or encoder: If contacts are worn or the encoder does not register correctly, replace the selector switch or encoder PCB with a Panasonic part.