Display shows ER 36, door alarm may sound even when doors are closed.

Safety: Disconnect power before servicing door switches.

This code indicates the door closed signal is not being detected correctly.

• Check door alignment: Ensure doors are level and close fully. Adjust leveling legs if needed.
• Inspect magnet and switch: On some models, a magnet in the door aligns with a reed switch in the frame. Verify the magnet is present and aligned.
• Test switch: Replace the reed switch if it fails continuity testing when a magnet is applied.