Freezer beeps and displays E1, temperature display may flash, unit may still run.

Safety: Disconnect power before removing door switch or trim pieces.

Steps:

• Check door operation: Open and close the door while watching the interior light. If the light stays on or off incorrectly, the door switch is suspect.
• Inspect switch: On upright freezers, the door switch is usually in the cabinet frame near the top or side. Gently pry out the switch with a plastic tool.
• Test continuity: With the switch removed and disconnected, use a multimeter to test continuity while pressing and releasing the plunger. Replace the door switch if readings are inconsistent.
• Magnet models: Some Fisher & Paykel models use a magnet in the door and a reed switch in the cabinet. Ensure the magnet is present and aligned; replace if missing.
• Wiring: Inspect the harness for breaks or corrosion. Repair as needed.