Freezer interior light stays on even when the door is closed, causing warming and condensation.

Safety: Unplug the unit before working on the door switch or light.

• Check door switch operation: Locate the switch in the door frame. Press it manually; the light should turn off. If not, the switch or PCB is faulty.
• Inspect door alignment: Ensure the door fully contacts the switch plunger when closed. Adjust hinges or leveling if needed.
• Replace door switch: Remove the switch from the liner, disconnect wires, and install a new Samsung door switch.
• Test: Restore power and verify the light turns off when the door is closed. If it remains on, the PCB may have a stuck relay and should be checked by a technician.