Microwave displays F2 and may beep continuously; keypad may not respond correctly.

Safety first: Disconnect power at the outlet or breaker before removing any panels.

Initial checks:

• Power cycle: Unplug for 5 minutes, then plug back in. If F2 reappears only when pressing a specific button, that key is stuck or shorted.
• Clean around keypad: Wipe the keypad surface with a slightly damp cloth and mild detergent, then dry thoroughly. Do not spray cleaner directly onto the keypad.

Internal inspection:

• Remove the top grille and mounting screw(s) for the control panel. Tilt the panel out carefully.
• Locate the keypad ribbon cable going into the control board. Disconnect and inspect for corrosion, discoloration, or cracks.
• Clean the ribbon contacts gently with a soft pencil eraser or electronics contact cleaner, then reconnect firmly.

Functional test:

• Restore power and test all keys. If F2 persists or certain keys do not respond, the keypad membrane is defective and must be replaced.
• If a new keypad does not resolve the issue, the control board is likely faulty.

Note: Avoid using the microwave if it beeps randomly or starts functions on its own; disconnect power until repaired.