Common Air Conditioning Problems and How to Troubleshoot Them

Common Air Conditioning Problems and How to Troubleshoot Them

Common Air Conditioning Problems and How to Troubleshoot Them


Air conditioning systems are essential for comfort in the sweltering heat, especially in areas like Central Florida where the climate can be particularly unforgiving. However, like any piece of complex machinery, air conditioning units are prone to a variety of problems that can hinder their efficiency or stop them from working altogether. Understanding these common issues and knowing how to troubleshoot them can save you time, money, and discomfort. Whether you're a homeowner or a maintenance professional, this guide will walk you through the most frequent AC problems and provide insights on when it's time to reach out for AC supplies in Central Florida.


1. The AC Isn't Cooling Properly

One of the most common complaints with air conditioning systems is that they're not cooling the space effectively. This issue can arise from several causes, including:

  • Dirty air filters: Clogged filters restrict airflow, significantly reducing cooling efficiency. Check and replace your air filters regularly to ensure proper airflow.
  • Low refrigerant levels: Refrigerant is the substance that cools the air within your AC system. Low levels, often due to leaks, can reduce your unit's cooling capacity. It's important to fix any leaks and recharge the refrigerant.
  • Faulty thermostat: An improperly calibrated thermostat can cause your AC to not cool effectively. Ensure your thermostat is set correctly and consider upgrading to a smart thermostat for better control.

2. The AC Unit Turns On and Off Frequently

This problem, known as short cycling, not only reduces efficiency but can also wear down your air conditioning unit more quickly. Possible reasons include:

  • Oversized AC unit: If your unit is too large for the space, it might cool the room quickly and then shut off, only to turn on again soon after. Proper sizing is crucial when selecting an AC unit.
  • Dirty evaporator coil: The evaporator coil absorbs heat from the air in your home. When it's dirty, its efficiency is compromised, potentially causing short cycling. Cleaning the coil can often resolve the issue.
  • Low refrigerant levels: Like with cooling issues, low refrigerant can cause short cycling. Checking for leaks and recharging the system might be necessary.

3. Unusual Noises Coming from the AC

Air conditioners should operate relatively quietly. Loud, unusual noises can indicate problems:

  • Banging or clanking noises: These sounds can suggest a loose or broken part inside the AC unit, such as a connecting rod or fan blade. Turning off the unit and inspecting for any loose components is advisable.
  • Squealing noises: Belt-driven units may produce squealing sounds if the belt is slipping. Replacing the belt is typically the solution.
  • Buzzing noises: Electrical issues can cause buzzing sounds. It's best to consult with a professional to address electrical problems safely.

4. The AC Smells Bad

Unpleasant odors from your AC can significantly impact your comfort and may indicate underlying issues:

  • Musty smells: These often point to mold or mildew inside the unit or ductwork due to moisture. Cleaning the affected areas and ensuring proper drainage can help.
  • Burning smells: A burning odor can signal an electrical problem or a malfunctioning component. Turn off your unit immediately and seek professional assistance.

When to Seek Professional Help

While some troubleshooting tasks can be handled by homeowners, it's important to recognize when professional help is needed. If you're experiencing persistent problems, it's time to call in the experts. For those in Central Florida, finding quality AC supplies and professional service is crucial for maintaining your system's efficiency and longevity. Discount Air Supply is a trusted provider of AC supplies in Central Florida, offering a wide range of products and expert advice to help you keep your air conditioning system running smoothly.



Dealing with common air conditioning problems promptly can prevent more significant issues down the line. Regular maintenance, including cleaning and replacing parts when necessary, is essential for optimal performance. For those times when DIY fixes aren't enough, having a reliable source for AC supplies in Central Florida is invaluable. Whether you're in need of parts, supplies, or professional advice, Discount Air Supply is here to support all your air conditioning needs. Keep your cool this summer by ensuring your AC system is in top condition.

If you're looking for AC supplies in Central Florida, don't hesitate to contact Discount Air Supply today. Our team is dedicated to providing the support you need to troubleshoot and solve your air conditioning issues efficiently and effectively.

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