RCA range knobs are hard to turn or do not align with the correct temperature/setting.

Safety first: Turn off power and gas (for gas models) before working near control valves.

• Remove and inspect knobs: Pull the knobs straight off and inspect the plastic hubs for cracks or rounding. Replace damaged control knobs.
• Clean shafts: Wipe the valve or switch shafts with a damp cloth to remove grease and debris. Do not spray cleaner directly into the valve body.
• Check alignment: Ensure replacement knobs match the shaft type (D-shaft, spline, etc.) and are installed in the correct orientation.
• Valve/switch replacement: If shafts are loose or binding, the underlying gas valve or infinite switch may need replacement by a technician.