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Why Is My Air Conditioner Short Cycling?

On the hottest days of the year, the last thing you need is your AC unit cycling on and off. Short cycling is when your unit decides to shut down its cooling cycle untimely. When your system is short cycling, it is a sign that your air conditioner needs repairs to work functionally again.

Providing outstanding HVAC services to Salem, NH, and the surrounding areas for years, Cornerstone Services knows a thing or two about why you are encountering short cycling problems. Let’s take a look at some of the most common reasons your system is not working efficiently and how to prevent similar issues in the future.

Common Reasons for Short Cycling

There isn’t just one reason why you are experiencing short cycling with your ac system. Here is a list of frequent occurrences that are causing potential damage to your HVAC system.

Oversized Unit

If the size of your air conditioning system is too large for your home, this can trigger your system to turn on and off so it can cool your home too fast. With a large unit, you could experience higher energy bills while some parts of your home are cooler than others. It is crucial to ensure your unit is the correct size for your home or get it replaced so short cycling stops.

Clogged Air Filters

It’s normal to forget about the state of your air filters; however, if ignored for too long, they will begin to have significant dirt and dust buildups. Dirty air filters will restrict airflow within your home and cause short cycles.

Frozen Evaporator Coils

If your air conditioner runs while it’s too cold out, your evaporator coils will likely freeze inside your unit. To thaw out your system, shut it down and then start it up when it’s completely thawed. If not thawed out, short cycling will occur quickly. If you keep running into frozen evaporator coils, it is best to request a service with a professional air conditioning repair service.

Low Refrigerant Levels

Another common cause of short cycling is when your AC doesn’t have enough refrigerant. This can happen from leaks and can cause significant damage to your compressor. It is essential to have an HVAC specialist fix any leaks and ensure your system will act efficiently.

How Can I Prevent My AC From Short Cycling?

While issues with any HVAC system can happen at any time, there are ways you can prevent problems from occurring. Take a look at some of our prevention tips:

  • Check your air filters every 2-3 months

  • Make sure you have a professional do regular maintenance on your system

  • Have your thermostat on the correct placement

  • Make sure you have the proper measurements for your air conditioner

If you believe you are experiencing short cycling or any other air conditioning problems, contact your trusted professionals at Cornerstone Services. We want to ensure you have cool air flowing throughout your home all summer long!


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