The question of whether to leave your air conditioner running continuously for 24 hours is a common dilemma, especially in a hot and humid climate like Singapore. While some believe that constant operation maintains consistent comfort levels, others worry about energy consumption, or wear and tear on the aircon unit. In this article, we will go deeper into this topic, debunking myths, and provide practical advice to help you make an informed decision about your air conditioning usage.


Debunking Aircon Myths:

Myth 1: Leaving the Air Conditioner On Saves Energy

Contrary to popular belief, keeping your air conditioner running 24/7 does not necessarily save energy. In fact, running the unit continuously can lead to higher electricity bills, especially if the cooling load is unnecessary during certain times of the day or when no one is home.


Myth 2: Constant Operation Extends the Lifespan of the Air Conditioner

While consistent use may prevent frequent cycling on and off, excessive runtime can strain the components of the air conditioner, potentially leading to premature wear and tear.


Myth 3: Turning Off and On Causes Excessive Wear

Modern air conditioners are designed to handle frequent cycling. The startup surge of energy when turning on the unit is minimal compared to the continuous operation over extended periods.



Practical Tips to Save Energy While Maintaining Comfort

Utilize Scheduling Feature

You can schedule cooling periods based on your daily routine. For example, setting a higher temperature when you go to bed (e.g. from 18 to 22 degrees after 2-3 hours into your sleep) and schedule the aircon unit to turn off when you head out for work.


Optimize Energy Efficiency:

Set the thermostat to an energy efficient temperature that still provides comfort (around 25-27°C). Continue to adjust as and when needed for additional comfort. This reduces energy consumption while maintaining a comfortable indoor environment.


Utilize Natural Ventilation:

Take advantage of natural ventilation during cooler times of the day, such as early morning or evening, by opening windows and allowing fresh air to circulate. You can also use an electric fan to help as well.


Regular Maintenance:

Schedule regular maintenance for your air conditioner to ensure optimal performance and efficiency. Clean or replace filters, check refrigerant levels, and inspect components for any signs of wear, or if your aircon unit is making any weird noises.


Consider Your Comfort Needs:

If you have specific comfort needs, such as health conditions that require consistent temperature and humidity levels, consult a professional to find the most energy-efficient solution.


Use Fan Mode:

During periods of cooler weather, you can utilize the fan mode on your air conditioner, which circulates air without engaging the compressor, thus reducing energy consumption and helping you save on energy bills.



Generally, it is not advisable to leave your aircon system on for 24 hours. This practice can lead to higher energy consumption, reduced efficiency, and potential damage to the equipment. Continuous operation of the air conditioner places significant strain on the system, accelerating wear and tear and increasing the risk of premature breakdowns. While continuous operation may provide consistent cooling, it’s important to balance comfort with energy conservation and sustainable operations.


If you are considering running your air conditioner 24/7 in your home, you may reach out to our experienced team at Infinity Air. We can assist you in selecting an optimal aircon model tailored to your cooling space size, emphasizing energy efficiency. Additionally, we offer comprehensive maintenance services to ensure smooth operation and longevity for your air conditioning system. Contact us via WhatsApp 9383 6574 today to optimize your indoor comfort and energy savings!