Freezer operates but energy usage seems unusually high; unit feels warm on outside and runs most of the time.

Safety first: Unplug the freezer before cleaning coils or testing heaters.

Steps:

• Seal and gasket: Inspect and replace the door gasket if it does not seal properly.
• Clean condenser: Clean the condenser coils thoroughly.
• Check defrost heater: After the compressor has been off for a while, feel near the evaporator area. If it is warm when not in defrost, test the defrost heater and control board for a stuck-on condition.
• Usage habits: Reduce door openings and avoid placing hot food directly into the freezer.