Freezer shows E9; interior light or door alarm may behave erratically

Safety first: Disconnect power before removing switch housings or panels.

Steps to troubleshoot E9:

• Check door operation: Open and close the door while observing the interior light and any door-open icon. If the light stays on with the door closed, the switch/sensor may be stuck.
• Locate the switch/sensor: On many Midea freezers, the door switch is a plunger-style switch in the liner or a magnetic sensor near the top frame.
• Inspect and clean: For plunger switches, press the plunger repeatedly to see if it sticks. Clean around it with a damp cloth to remove debris. For magnetic sensors, ensure the door magnet is present and aligned.
• Test continuity: Remove the switch from the liner (usually snaps out). With a multimeter, check continuity while pressing and releasing the switch. Replace if readings do not change.
• Replace faulty switch/sensor: Install a new Midea door switch or magnetic sensor. Reconnect wiring and secure in place.

Note: If the switch tests good but E9 persists, the main control board input circuit may be faulty.