Freezer interior light stays on when the door is closed, causing warming near the top.

Safety first: Unplug the freezer before working on the switch or light.

Steps:

• Check light through gaps: In a dark room, look for light leaking around the door when closed.
• Test switch: Press the door switch manually; the light should turn off. If not, test continuity and replace the switch if faulty.
• Adjust door alignment: Ensure the door fully depresses the switch when closed. Adjust hinges or leveling if necessary.