How to Set Auto Mode in Fujitsu AC: A Comprehensive Guide

Navigating the various modes and settings of a Fujitsu air conditioner can be a daunting task, but mastering the auto mode is crucial for maintaining optimal comfort and energy efficiency. In this comprehensive guide, we’ll delve into the intricacies of setting the auto mode on your Fujitsu AC, equipping you with the knowledge and confidence to take control of your indoor climate.

Understanding the Difference Between Auto and Cool Modes

Before we dive into the step-by-step process, it’s essential to grasp the fundamental differences between the auto and cool modes on your Fujitsu air conditioner. The auto mode is designed to automatically adjust the temperature based on the set point and ambient conditions, ensuring a comfortable and energy-efficient operation. In contrast, the cool mode maintains a constant set temperature without dynamically adapting to the changing environment.

The auto mode is particularly beneficial when the outdoor temperature fluctuates significantly, as it can seamlessly transition between cooling and heating to maintain your desired comfort level. On the other hand, the cool mode is ideal for situations where you require a consistent, unwavering temperature, such as when hosting guests or during specific activities that demand a stable thermal environment.

Setting the Temperature

how to set auto mode in Fujitsu acImage source: Fujitsu AC by Dinkun Chen

The first step in activating the auto mode on your Fujitsu AC is to set the desired temperature. This is done by pressing the “UP” or “DOWN” button on the remote control. The display on the unit will show the current set temperature, allowing you to fine-tune it to your preference.

It’s important to note that the temperature range may vary depending on the specific model of your Fujitsu air conditioner. Typically, the temperature can be adjusted in increments of 1°C or 1°F, providing you with precise control over the indoor climate.

Selecting the Auto Mode

Once you’ve set the desired temperature, the next step is to select the auto mode. This is done by pressing the “MODE” button on the remote control and cycling through the available modes until you reach the “AUTO” setting.

It’s worth mentioning that some Fujitsu air conditioners may have additional sub-modes within the auto setting, such as “Auto Cooling” or “Auto Heating.” These sub-modes can further optimize the unit’s performance based on the current environmental conditions, ensuring a seamless and efficient operation.

Adjusting the Fan Speed

In the auto mode, the fan speed of your Fujitsu air conditioner will automatically adjust based on the temperature and set point. However, you can manually override the fan speed by pressing the “FAN” button on the remote control and cycling through the available options.

The fan speed settings typically range from “Low” to “High,” with some models offering additional intermediate settings. Adjusting the fan speed can be beneficial in certain situations, such as when you require a more powerful airflow or a gentler, quieter operation.

Monitoring the Performance

Once you’ve set the auto mode, it’s essential to monitor the performance of your Fujitsu air conditioner to ensure it’s maintaining the desired temperature and comfort level. Observe the unit’s behavior and make any necessary adjustments to the temperature or fan speed settings.

If you find that the temperature is not being maintained as expected, you may need to switch to the cool mode or further fine-tune the fan speed settings. The auto mode is designed to be adaptive, but in some cases, manual intervention may be required to achieve the optimal indoor climate.

Advanced Considerations

For a more comprehensive understanding of your Fujitsu air conditioner’s auto mode, it’s recommended to consult the user manual or seek guidance from the manufacturer’s support resources. Some advanced features and settings may include:

  1. Temperature Sensing: Fujitsu air conditioners may incorporate advanced temperature sensing technologies, such as multiple sensors or intelligent algorithms, to accurately detect and respond to changes in the ambient conditions.

  2. Energy-Saving Modes: Some Fujitsu models offer specialized energy-saving modes within the auto setting, further optimizing the unit’s performance to minimize energy consumption without compromising comfort.

  3. Humidity Control: Certain Fujitsu air conditioners may integrate humidity control capabilities, allowing the auto mode to maintain both temperature and humidity levels for enhanced indoor air quality.

  4. Zonal Control: Advanced Fujitsu systems may feature zonal control, enabling you to set different auto mode preferences for different areas of your living space, ensuring personalized comfort throughout your home or office.

By familiarizing yourself with these advanced features and settings, you can unlock the full potential of your Fujitsu air conditioner’s auto mode, tailoring it to your specific needs and preferences.


Setting the auto mode on your Fujitsu air conditioner is a straightforward process that can significantly enhance your indoor comfort and energy efficiency. By understanding the differences between the auto and cool modes, adjusting the temperature, selecting the appropriate settings, and monitoring the performance, you can take control of your indoor climate and enjoy the benefits of this intelligent feature.

Remember, always refer to your Fujitsu air conditioner’s user manual for model-specific instructions and consult the manufacturer’s support resources if you have any additional questions or concerns. With this comprehensive guide, you’re well on your way to mastering the auto mode and optimizing the performance of your Fujitsu AC.


  1. Fujitsu General Global Operating Manual
  2. Fujitsu General Help Centre: What is Auto Mode?
  3. Fujitsu Air Conditioner Operating Manual