How to keep your AC in good condition?

Author: Donnie Lindgren DDS  |  Last update: Wednesday, June 10, 2026

How to keep an air conditioner in good condition?

How to maintain AC properly?

Check and air seal duct leakage in central systems. Measure airflow across the evaporator coil. Verify the electric control sequence to ensure the heating and cooling systems do not operate simultaneously. Inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary.

Is it better to keep your AC at a constant temperature?

Instead of choosing a constant temperature year-round, it's better to keep your house a constant temperature on a seasonal basis. Keeping your home at a higher temperature during the warmer months will mean your air conditioner doesn't have to work as hard.

How can I make my air conditioner last longer?

How To Clean Your AC and Coils Like the Pros Do | WILL Make Air Blow Colder

How can I make my AC cooling more effective?

How to increase AC lifespan?

What is the best temperature to set your AC on?

According to the Department of Energy¹, 78° Fahrenheit is the sweet spot for air conditioners to balance energy savings and comfort when people are at home and need cooling. But in reality, this is a question that doesn't have a “one size fits all” answer.

How long should AC run per day?

As we said, the type of air conditioner you have is going to determine how often it should be running throughout the day. Typically, you can expect the following: Central air systems: Eight to 14 hours. Window units: 12 to 18 hours.

Should I keep AC on if it's not cooling?

Turning off your AC when it's not cooling is more than a precaution; it's a necessary first step in troubleshooting and protecting your system from further damage. By understanding when to perform simple checks and when to call in the experts, you ensure your air conditioner remains a reliable refuge from the heat.

How many hours a day should I use my AC?

If your location is now at the design temperature, your air conditioner should run on an average of 12-16 hours each day.

How to keep AC cooling for a long time?

Turn off lights and exhaust fan in the room

Turn extra lights off to reduce the heat level in the room so that the AC has to work that much less. Switch on the AC before it gets too hot, so that it does not have to overwork to cool the air.

Should you keep AC on all night?

How Safe Is It to Leave the AC on During the Night? Technically, it is safe to leave the air conditioner on all night. As long as you schedule regular air conditioner maintenance and repair services, your unit should work perfectly for years and pose no threat to your household.

How do I make sure my AC is working properly?

Is it OK to use AC all day?

It's normal for an AC to run for multiple hours per day. However, there is a difference between keeping your AC on throughout the day and the compressor running all day. Once your space reaches your desired temperature, your AC system, or more specifically, the compressor, should stop running automatically.

How can I make my AC cold again?

Does AC need to rest?

Allowing your air conditioner to rest is an excellent way to extend its life and ensure it operates efficiently throughout the years. Air conditioners, like homeowners, require rest in order to recover and perform optimally.

Does running the AC use a lot of electricity?

Electricity usage can vary depending on different factors. On average, a home air conditioner can use about 3,000 watts of electricity an hour. If you have it on all day, that's 72,000 watts of electricity a day! However, running it on the 'fan-only' mode will only consume about 750 watts an hour.

Should you give your AC a break?

This will reduce the strain placed on your AC unit, allowing it to run more efficiently, and lowering your energy bills. Bottom line, while it's not necessary to give your AC unit rest breaks during summer, its maintenance is essential.

What AC temperature is good for sleeping?

Sleeping in a room with the air conditioner set to an appropriate temperature is important for quality sleep. The ideal AC temperature for sleeping is around 65°F (18.3°C). However, this may differ between individuals, who might find their ideal AC temperature lies between 60 and 67°F (15.6 and 19.4°C).

Is it better to leave AC at a set temperature?

If You're Leaving Home for the Day or Weekend ...

"It's more energy efficient to keep the unit on but turn the temperature setting up," she advises. Turning off the AC unit during the day is not necessarily a bad thing — it is a myth that the AC unit has to work extra-hard to cool off a hot house.

What is the best temperature for an aircon to save electricity?

The Goldilocks Zone

Experts suggest that the optimal AC temperature is around 78°F (25.5°C) during the summer months. This temperature keeps you cool without overburdening your energy consumption. It's like the Goldilocks zone – not too hot, not too cold.

How do I keep my AC healthy?

How do I keep my AC unit in good condition?

How can I make my aircon more effective?