Gas or electric range displays ER on the clock or control panel and beeps; controls may be locked.

Safety first: For gas ranges, ensure all burners are off and no gas odor is present.

• Unlock controls: Press and hold the Lock or Clock key (varies by model) for 3–5 seconds until the lock icon or ER clears.
• Power cycle: Turn off the breaker for 5 minutes, then restore power.
• Check for stuck keys: Press each button to ensure none are physically stuck or unresponsive.

If ER persists and keys do not respond, the control panel or main control board may need replacement.