Error F15 appears and the refrigerator may not recognize door openings, causing lights and fans to behave incorrectly.

Safety: Disconnect power before removing door switch assemblies or trim panels.

Steps:

• 1. Identify switch type: Ikea refrigerators may use a plunger-style mechanical switch or a hidden magnetic reed sensor.
• 2. Mechanical switch test: Press the switch by hand and see if the interior light turns on/off (with power connected briefly). If not, unplug and remove the switch. Test continuity with a multimeter while pressing the button. Replace if it does not change state.
• 3. Magnetic sensor: If no visible switch, the sensor is often behind the liner and triggered by a magnet in the door. Check that the door gasket and magnet strip are intact and the door closes fully.
• 4. Wiring inspection: Remove the top trim or hinge cover and inspect the wiring harness for breaks or pinched wires.
• 5. Replace faulty parts: Install a new door switch or sensor as required, ensuring it is correctly positioned to detect door movement.

Tip: A faulty door sensor can also prevent the evaporator fan from running with the door closed, affecting cooling.