Display shows E7 and the interior lights or fans may behave erratically.

Safety: Unplug the refrigerator before removing switch assemblies.

• 1. Locate door switch: The switch is usually in the door frame near the top or side, activated when the door closes.
• 2. Check mechanical action: Press the switch plunger by hand. It should move freely and click. If stuck or loose, it may not signal correctly.
• 3. Test continuity: Remove the switch (often pried out gently with a flat tool). Disconnect wires and test with a multimeter. The switch should change from open to closed when pressed.
• 4. Inspect wiring: Look for broken or pulled wires behind the switch opening. Repair any damage with proper connectors.
• 5. Check door alignment: Ensure the door closes fully and contacts the switch. Adjust door hinges if the door is sagging and missing the switch.
• 6. Replace if faulty: Install a new door switch if it fails continuity tests. Reconnect wires and snap the switch back into place.
• 7. If E7 persists: The control board door input circuit may be defective, requiring main control board replacement.