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How can I repair a sub-zero wine cooler that is not maintaining the desired temperature?

To repair a Sub-Zero wine cooler not maintaining the desired temperature, follow these steps:
1. Check the power supply: Ensure the wine cooler is receiving power and the outlet is functional.
2. Clean the condenser coils: Dust and debris can hinder cooling performance. Clean the coils using a coil brush or vacuum cleaner.
3. Verify the door seal: A faulty door gasket can cause temperature fluctuations. Check the seal for any damage and replace it if necessary.
4. Check the temperature settings: Ensure the wine cooler is set to the desired temperature.
5. Monitor for changes: Allow time for the wine cooler to stabilize after adjustments. If the problem persists, contact a professional Sub-Zero appliance repair service for further diagnosis and repair.
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