If your window unit air conditioner does not have an "energy saver" mode or an option to automatically stop the fan when the compressor is off, it may not be possible to achieve this functionality directly with the existing controls. However, there are some potential workarounds and considerations you can explore:
Manual Control: Some window AC units have separate controls for the fan and the cooling compressor. In such cases, you can manually turn off the fan when you want to save energy or reduce humidity. Keep in mind that doing so will also reduce air circulation and might lead to less even cooling in the room.
External Timer or Smart Plug: You could consider using an external timer or a smart plug to control the power supply to the AC unit. These devices can be programmed to turn the AC on and off at specific times, including the fan. This way, you can set the timer to turn off the fan when the compressor cycles off. However, this method might be less convenient as it requires additional hardware.
Alternate AC Unit: If energy efficiency and humidity control are significant concerns for you, you might consider investing in a more advanced window unit or a different type of air conditioner that offers an "energy saver" mode or better climate control options.
Regarding whether it's a bad idea to stop the fan when the compressor is off, there are pros and cons to consider:
Pros:
- Energy Savings: Running the fan continuously does consume some energy, and turning it off when the compressor is not active could lead to reduced energy usage.
- Lower Humidity: By turning off the fan, you might reduce the circulation of humid air, helping to control indoor humidity levels.
Cons:
- Uneven Cooling: Without the fan running, the air conditioner won't distribute cooled air throughout the room as effectively. This could lead to uneven temperatures and potential hotspots.
- Air Stagnation: Stopping the fan can lead to less air movement, potentially making the room feel stuffy and less comfortable.
- Potential Wear: Frequent starting and stopping of the fan might introduce wear on the fan motor over time.
Ultimately, the impact of stopping the fan when the compressor is off will depend on various factors, including the design of the AC unit, the specific room conditions, and your personal comfort preferences. If you are unsure, it's a good idea to experiment with different settings and observe how they affect your comfort and energy usage before settling on a particular approach.