Interior light stays on even when the door is closed, causing the cabinet to warm up.

Safety: Unplug the unit before adjusting switches or magnets.

Steps:

• Check door alignment: Ensure the cabinet is level and the door closes squarely against the frame.
• Inspect magnet: Verify that the door magnet is present and aligned with the frame sensor. Reposition or replace if missing.
• Test switch: Manually operate the switch or place a magnet over the reed sensor. If the light does not go off, replace the door switch assembly.
• Control board: If a new switch does not resolve the issue, the main control PCB may be faulty and should be replaced by a technician.