The AUTO fan mode is generally the best for your AC as it's the most energy-efficient.
Here's a breakdown of why AUTO mode is often preferred:
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Energy Efficiency: In AUTO mode, the fan only runs when the AC is actively cooling. When the desired temperature is reached, both the compressor and the fan shut off. This prevents the fan from running unnecessarily, saving energy and reducing your electricity bill.
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Improved Dehumidification: When the fan is set to AUTO, after the cooling cycle ends, the moisture that has condensed on the AC's coils has a chance to drip off and drain away. This reduces the amount of humidity circulating in your home. If the fan is constantly running (in the ON mode), it can re-evaporate some of this moisture back into the air.
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Reduced Wear and Tear: Because the fan isn't running constantly in AUTO mode, there's less wear and tear on the fan motor, potentially extending its lifespan.
Why You Might Choose "ON" Mode (Although Less Ideal):
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Consistent Air Circulation: If you have hot or cold spots in your home, running the fan continuously (ON mode) can help circulate the air and even out the temperature. However, consider using strategically placed standalone fans instead, as they are often more efficient.
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Air Filtration (If Applicable): If you have a high-quality air filter in your AC system, running the fan continuously can help to filter the air more effectively. However, this comes at the cost of increased energy consumption and the need to change the filter more frequently.
In Summary:
For most situations, the AUTO setting provides the best balance of comfort, energy savings, and dehumidification. Only consider using the ON setting if you have specific needs that outweigh the benefits of the AUTO mode.
