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How do I fix a sub-zero freezer that is constantly running and consuming excessive energy?

To fix a Sub-Zero freezer that is constantly running and consuming excessive energy, follow these steps:
1. Check the temperature settings: Ensure the freezer is set to the recommended temperature (around 0°F or -18°C).
2. Clean the condenser coils: Dust and debris on the coils can cause the freezer to run inefficiently. Clean them using a coil brush or vacuum cleaner.
3. Verify the door seal: Inspect the rubber gasket around the freezer door for any damage or gaps. Replace it if needed to maintain a proper seal.
4. Check the evaporator fan: Test the evaporator fan to ensure it's working correctly, as it circulates cold air inside the freezer.
5. Monitor the energy consumption: Allow time for the freezer to stabilize after adjustments. If the problem persists, consult a professional Sub-Zero technician for further diagnosis and repair to avoid further energy waste.
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