How to Fix Short Cycling Air Conditioner

Is your air conditioner short cycling? If your AC unit is turning on and off more frequently than usual, it’s called short cycling. Not only is this annoying, but it’s also a waste of energy and can cause your AC to break down prematurely. This post will show you how to fix short cycling and get your AC back to normal.

Short cycling is usually caused by a faulty thermostat, a problem with the compressor, or low refrigerant levels. We’ll walk you through each of these issues and show you how to fix them. So if your AC is short cycling, read on how to fix short cycling air conditioner.

How to Fix Short Cycling Air Conditioner 

What Does It Mean When an AC Unit Short Cycles?

When your air conditioner short cycles, the unit turns on and off more frequently than normal, this can be caused by various factors, including a dirty filter, a faulty thermostat, or low coolant levels. Short cycling puts a lot of stress on your AC unit and can lead to expensive repairs down the line. 

Fortunately, you can take a few simple steps to fix the problem. Start by checking your air filter and replacing it if it’s dirty.  If that doesn’t solve the issue, you may need to adjust your thermostat or have a technician check for coolant leaks. You can get your AC unit back to running smoothly with a little troubleshooting.

Step by Step Processes for How to Fix Short Cycling Air Conditioner 

Step 1:  Inspect Your Air Conditioner

The first thing you will want to do is take a look at your air conditioner. If you see any debris or dirt around the unit, make sure to remove it.  This can cause your air conditioner to overwork itself and shorten the unit’s lifespan.

Step 2:  Check Your Air Filter 

A clogged air filter is one of the most common causes of short cycling. Your air conditioner’s air filter keeps dirt, dust, and other airborne particles from entering your home through the air conditioner.  If the filter becomes clogged, it can restrict airflow and cause your air conditioner to overheat.

Step 3:  Inspect Your Ductwork  

If your home has ductwork, it’s important to inspect it regularly. Over time, ductwork can become damaged or dislodged, which can restrict airflow and cause your air conditioner to overheat.

Step 4:  Check for Refrigerant Leaks 

Refrigerant is what helps your air conditioner cool your home. If there is a leak in your refrigerant line, it can cause your air conditioner to short cycle. If you think you may have a refrigerant leak, it’s important to contact a professional. Refrigerant is a toxic substance that can be dangerous if not handled properly.

Air Conditioner Cool Your Home

Step 5:  Schedule Annual Maintenance  

One of the best ways to prevent short cycling is to have your air conditioner serviced by a professional annually. During this service, a technician will thoroughly clean your unit and make any necessary repairs. This can help extend the lifespan of your air conditioner and prevent future problems.

If you follow these steps, you should be able to fix the short cycling issue with your air conditioner.

Tips for How to Fix Short Cycling Air Conditioner 

  1. Check your air conditioner’s coils and fins. If these are dirty, your air conditioner will have to work harder, which can lead to short cycling.
  2. Make sure nothing is blocking your air conditioner’s outdoor unit and inspect your air conditioner’s ductwork and repair any leaks.
  3. Check your air conditioner’s refrigerant level and add more if needed and inspect your air conditioner’s electrical connections and tighten any loose wires.
  4. Check for debris around your outdoor unit and remove it if necessary and if you have an older air conditioner, consider having it serviced or replaced.
  5. Make sure your thermostat is set to “cool” and that the temperature is set below the current inside temperature and if your air conditioner is still short cycling, call a professional for help.
  6. Ensure your air conditioner is regularly serviced to prevent short cycling and other problems. When using your air conditioner, open windows, and doors to ensure proper ventilation.
  7. Keep your air conditioner’s filter clean to help prevent short cycling, and inspect your air conditioner’s condensate drain line and clear any clogs.
  8. Check the temperature of your air conditioner’s evaporator coils. If they’re too cold, it could be causing your air conditioner to short cycle.
Check the Temperature of Your Air Conditioner's Evaporator Coils

Why Are You Air Conditioner Short Cycling? 

Short cycling is when your air conditioner turns on and off more frequently than normal. Various issues can cause this, but the most common culprit is an oversized AC unit. Other causes of short cycling include:

  • Dirty air filter
  • Clogged condensate drain line
  • Low refrigerant levels
  • Faulty thermostat
  • Incorrectly sized AC unit

What Should You Do to Prevent Your Air Conditioner From Short Cycling in the Future? 

  • One of the best ways to prevent your air conditioner from short cycling is to schedule regular maintenance appointments. Maintenance appointments help ensure that your air conditioner is running efficiently and can help identify any potential issues before they become major problems. 
  • A dirty air filter can cause your air conditioner to work harder than necessary, leading to short cycling. Be sure to check your air filter regularly and replace it as needed.
  • Another way to help prevent short cycling is to keep your evaporator coils clean. Dirty coils can make it more difficult for your air conditioner to cool your home, leading to short cycling.
  • If your air conditioner is too small or too large for your home, it can lead to short cycling. Be sure to have a professional help you choose an air conditioner that is the right size for your home.
  • Keeping the area around your air conditioner’s outdoor unit clear of debris is important. Debris can block the airflow to the unit, which can cause it to overheat and short cycle.

Is It Necessary to Hire a Professional to Fix Short Cycling Air Conditioner?

The short answer is no; you don’t necessarily need to hire a professional to fix your short cycling air conditioner. However, depending on the severity of the issue, it may be worthwhile to do so. If your air conditioner is only short cycling occasionally, you can try a few things at home to fix the problem. However, if your air conditioner is short cycling frequently or the issue seems to be worsening, it’s probably time to call in a professional.

There are a few different things that can cause your air conditioner to short cycle. The most common culprit is a dirty air filter. When your air filter is clogged, it restricts airflow to your AC unit. This causes your AC unit to work harder than it needs to cool your home, leading to short cycling.

Depending on the Severity of the Issue

If you suspect that a dirty air filter is the cause of your short-cycling AC unit, the first thing you’ll want to do is replace the air filter. You can usually find replacement air filters at your local hardware store or online. Once you’ve replaced the air filter, see if the short cycling stops. If it does, great! If not, there are a few other things you can try.

Another common cause of short-cycling AC units is a frozen evaporator coil. When your evaporator coil freezes, it stops absorbing heat as efficiently as it should. This causes your AC unit to run for longer periods of time to cool your home, which can lead to short cycling.

How Much Money Will You Need if You Hire a Professional?

The cost of repairing a short-cycling air conditioner will depend on the severity of the problem. If it is a minor issue, such as a dirty filter, you may be able to fix it yourself. However, you will need to hire a professional if the problem is more serious, such as a Freon leak.

The cost of hiring a professional will vary depending on the problem type and your unit size. However, you can expect to pay at least $100 for the repair. It is also important to note that if your unit is under warranty, you may be able to get the repairs covered by the manufacturer.

such as a dirty filter

Conclusion

If your air conditioner is short cycling, there are a few potential causes. The most common cause is a dirty air filter. A dirty air filter can restrict air flow, causing the air conditioner to work harder and cycle more frequently. Another potential cause is a faulty thermostat.

If the thermostat is not working properly, it can cause the air conditioner to turn on and off more frequently than normal. Lastly, a refrigerant leak can also cause short cycling. If your air conditioner is low on refrigerant, it will cycle more frequently in an attempt to cool the home.

Fortunately, all of these issues are relatively easy to fix. Simply replacing the air filter, calibrating the thermostat, or topping off the refrigerant can often resolve the issue. I hope this article has been beneficial in learning how to fix short cycling air conditioner.

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Rick Kelly

Rick is a handyman who grew up helping his dad with his business. He learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, Rick is still into fixing things- only now, he's doing it for a living. Rick is always looking for new ways to help people grow and develop. That's why he started contributing to this blog: to share all his experience and knowledge so that he can help people who are interested in DIY repair.

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