10 Common AC Issues & Simple Solutions

Are you tired of your air conditioner acting up on the hottest days of the year? You’re not alone! Many homeowners face unexpected air conditioning issues that can turn a comfortable summer day into a sweat-soaked ordeal.

Fortunately, Dealnew is here to guide you through these common problems and offer solutions. This blog, with insights from White Mechanical, an expert HVAC company, will walk you through the ten most common air conditioning problems you should know about. Whether your AC isn’t turning on, isn’t cooling, or is making strange noises, we’ve got you covered!

 

1. The Air Conditioner Won’t Turn On

 

 

Imagine this: It’s a scorching summer day, and you eagerly reach for your thermostat to turn on the air conditioner, but nothing happens. This frustrating scenario can be due to a few common causes. Often, the issue is as simple as dead batteries in your thermostat. Before you panic, check the thermostat’s battery life and replace it if necessary.

Another common culprit could be incorrect thermostat settings. Ensure that your thermostat is set to “cool” mode and that the desired temperature is lower than the current room temperature. If neither of these solves the problem, it could be a tripped circuit breaker. Head to your electrical panel and see if the circuit breaker for your air conditioning unit has been tripped. If it has, reset it, but keep in mind that frequent trips may indicate a more significant electrical issue.

 

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2. The AC Is Not Blowing Cold Air

 

Few things are as disappointing as feeling warm air blowing from your air conditioner. If your AC isn’t providing the cool air you crave, a dirty air filter might be to blame. Over time, air filters collect dust, dirt, and debris, which can block airflow and reduce your system’s efficiency.

A clogged filter can also lead to the evaporator coil freezing up, which further hampers the cooling process. It’s essential to check your air filter every month and replace it as needed. This simple maintenance task can prevent many AC issues and keep your home comfortable.

 

3. The Outside Unit Freezes Up

 

It might seem odd, but your air conditioner can freeze up even on the hottest days. This usually happens due to insufficient airflow across the evaporator coil, causing it to get too cold and freeze. Several factors can cause this insufficient airflow, including dirty filters, blocked vents, or issues with the blower motor.

Low refrigerant levels, often due to leaks, can also cause the outside unit to freeze. Additionally, if outdoor temperatures are too low, the unit may struggle to operate efficiently. To prevent freezing, ensure your system is well-maintained with clean filters and clear vents. If the problem persists, it’s best to call in a professional HVAC technician.

 

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4. Refrigerant Leaks

 

 

Refrigerant is vital to your air conditioner’s cooling process, but leaks can lead to significant problems. When refrigerant levels are low, your air conditioner will struggle to cool your home, leading to uneven temperatures and higher energy bills.

Refrigerant leaks can also cause the evaporator coil to freeze, which puts extra strain on the compressor and may lead to a complete system breakdown if left unchecked. If you suspect a refrigerant leak, it’s essential to contact a professional HVAC technician from White Mechanical to inspect and repair the leak. Refrigerant leaks aren’t just an inconvenience; they can be harmful to the environment and should be addressed promptly.

 

5. Strange Noises Coming from the Air Conditioner

 

Air conditioners aren’t completely silent, but if you hear strange noises like hissing, buzzing, or clicking, it could be a sign of a problem. Different sounds often point to distinct issues. For example, a hissing sound could indicate a refrigerant leak, while a clicking noise may suggest an issue with a relay or an electrical component.

Buzzing noises might be due to loose parts or debris in the outdoor unit. Addressing these noises promptly can prevent small problems from becoming more significant, costly repairs. Regular maintenance can help identify these issues early, ensuring your air conditioner runs smoothly all season long.

 

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6. The Evaporator Coil Is Frozen

 

 

A frozen evaporator coil is a common problem often caused by inadequate airflow due to blocked vents, dirty filters, or a malfunctioning fan. When the airflow is restricted, moisture on the evaporator coil can freeze, turning your AC into a block of ice rather than a source of cool air.

In some cases, the frozen coil can even lead to water damage inside your home if the ice melts and leaks out of the unit. To avoid this issue, make sure to check your air filters regularly and keep the area around your air conditioner clear of obstructions.

 

7. The AC Turns On and Off Frequently

 

Does your air conditioner seem to have a mind of its own, turning on and off frequently without reason? This issue, known as short cycling, can wear out your system’s electrical components and the compressor. Short cycling can be caused by an oversized AC unit, low refrigerant levels, or even a faulty thermostat.

Frequent cycling not only affects your comfort but also increases your energy bills and can lead to premature system failure. Addressing the root cause of short cycling can extend the life of your air conditioner and keep your home more comfortable.

 

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8. Water Leaks from the Outdoor Unit

 

 

Seeing water around your outdoor unit on a hot, humid day isn’t unusual, but if you notice water leaking inside your home, that’s a sign of a problem. Indoor water leaks are often caused by issues such as dirty air filters, improper installation, blocked drain pipes, or low refrigerant levels.

When the drain line becomes clogged, it can cause water to back up into your home, leading to water damage and mold growth. To prevent leaks, make sure your air conditioner is installed correctly, and the drain lines are kept clean and clear.

 

9. Drainage Problems

 

Proper drainage is essential for your air conditioner to function correctly. If your AC isn’t draining correctly, it can lead to water damage, mold, and mildew growth. Clogged drain lines are a common cause of drainage problems, but the installation’s level can also affect how well your system drains.

A unit that isn’t installed level can cause water to pool in the wrong areas, leading to overflows and leaks. Regular maintenance can help ensure that your drainage system is working correctly and prevent costly water damage to your home.

 

10. The Thermostat Sensor Is Misaligned or Damaged

 

 

Your thermostat sensor is a small but vital component of your air conditioning system. It measures the air temperature entering the evaporator coil and adjusts cooling accordingly. If the sensor is misaligned or damaged, it can cause the air conditioner to behave erratically, cycling on and off or failing to maintain a consistent temperature.

A misplaced or damaged thermostat sensor can often be realigned or replaced relatively easily. However, it’s a good idea to have a professional HVAC technician inspect the issue to ensure your air conditioner is running as efficiently as possible.

 

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Final Thoughts

 

Understanding these common air conditioning problems can help you maintain a comfortable and efficient home environment throughout the hot summer months. Regular maintenance and tune-ups by a professional HVAC technician, such as those from White Mechanical, are crucial for preventing these issues and ensuring your system operates at peak performance.

Remember, a well-maintained air conditioner saves you money on energy bills and helps you avoid costly repairs down the line. If you’re experiencing any of these common AC problems or want to schedule a routine maintenance check, don’t hesitate to contact White Mechanical.

And, of course, remember to check out Dealnew for more helpful tips and services to keep your home comfortable all year long. Stay cool and enjoy the peace of mind that comes with a well-functioning air conditioner!