Microwave beeps and shows E2; cooking will not start or stops shortly after starting.

Safety first: Unplug the microwave before removing any panels. Do not touch internal high-voltage components.

• Power reset: Unplug the unit for 5–10 minutes to discharge residual power. Plug back in and check if E2 clears.
• Inspect keypad area: If the keypad is unresponsive, some keys stick, or random beeps occur, wipe the keypad surface with a slightly damp cloth and mild detergent, then dry thoroughly. Do not spray cleaner directly onto the panel.
• Check for moisture: If E2 appeared after heavy steaming or a spill, leave the door open and allow the control area to dry for several hours. Try again.
• Internal inspection (advanced): If comfortable, remove the outer cabinet to access the control board. Verify the flat ribbon cable from the keypad is fully seated and not corroded. Reseat it carefully.
• Next step: If E2 persists, the membrane keypad or main PCB is likely faulty and must be replaced as an assembly. This is typically a moderate to advanced repair; consider a technician if unsure.