Here are the five most common air conditioning problems that homeowners experience during the summer months. Our cooling philosophy involves air quality, humidity, and temperature. Behind most malfunctions, there are simple solutions that you might be able to do on your own to restore the cool comfort of your home and save money.

Find more about our AC philosophy. If the batteries are dead, replace them. A handful of problems might cause your home to feel overly warm even when the air conditioner runs. Then verify that the thermostat has the correct settings. Inspect the area around the air conditioner to make sure that is clear of debris and vegetation.

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Keep bushes and tall plants at least 2 feet away, and remove leaves the fall on top of the unit. You can tell if the refrigerant levels are low by examining the larger of the two copper lines that go into the condenser. If you have older windows in your home or need additional insulation in your attic, you might be experiencing heat gains that warm your home. Using blackout curtains during the day or adding insulation might help. An HVAC technician can perform tests to determine if this is the cause of your discomfort.

Temperatures fluctuations in a home are generally the result of leaks in ductwork, poor insulation, or blocked vents or registers. Ensure that the vents throughout your home are open, clean and unobstructed. You might find that rooms with south-facing windows feel hotter than other rooms.

If this is the case, use blackout curtains over the windows during the warmest times of the day. Another solution is the professional installation of separate zoning systems in your home that allow you to control the temperature in specific areas.

Refrigerant leaking from the drain line will make your house feel warm and may cause ice to build up over the coils and drip water. If any part of the air conditioner is frozen, turn it off, allowing it to defrost on its own, and call an HVAC technician.

Screeching or squealing sounds that come from the blower motor indicates a motor bearing problem or a faulty belt that might break.

Adding lubricant to the oil port might help. A smacking noise, like playing cards hitting a bicycle spoke, when the blower runs could mean something is stuck in the blower blades or in the housing surrounding the blower.

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A rattling noise that occurs when the fan turns the compressor on is due to a failing motor or loose hardware. Call a professional to inspect the unit. As you troubleshoot your air conditioning unit, keep its warranty in mind. Learn more about how to handle service and repair with our resources. When you notice your air conditioner not functioning normally, address the issue as soon as you can to prevent it from becoming a larger, more expensive problem. Learn more about why our customers continue to choose AAA.

Contact us today to schedule an appointment. Toggle navigation. The Air Conditioner Makes Strange Noises Screeching or squealing sounds that come from the blower motor indicates a motor bearing problem or a faulty belt that might break.Before you know it, those living in the residential building you manage will be cranking up their air conditioning systems.

A preemptive air conditioning troubleshooting mission and appropriate residential air conditioning maintenance can aid you in your goal of smoothly operating air conditioning systems and happy residents. When warm weather hits and the heat is on, the last thing you want is for your air conditioning to be off. Here are some of the most prevalent problems that you can avoid by following common sense operational procedures and with routine residential air conditioning maintenance.

It also could be the result of broken or loose wiring or thermostat problems. Thermostat glitches If your thermostat is not working or if it is incorrectly calibrated, it may not tell the air conditioner to turn on. The older, dial-type thermostats are more often subject to calibration problems, but sometimes the newer programmable thermostats are not easy to program.

When doing air conditioning troubleshooting, you should consult your thermostat manual to make sure you have programmed your thermostat properly. Air conditioner problems are not cool — low refrigerant equals low efficiency While air conditioning troubleshooting uncovers an under-performing unit, that can be the result of low refrigerant.

If the refrigerant level is low, it usually means it was either undercharged at installation or it has a leak. If you notice your building is not cooling properly or the air is somewhat sticky, a low refrigerant level could be the culprit. Without the right refrigerant level, heat and humidity cannot efficiently be removed from the air.

The refrigerant is the lifeblood of your air conditioning unit and is akin to the motor oil in your vehicle. Likewise, with an air conditioner system, low refrigerant is often the sign of a leak and you will need a qualified HVAC experts to fix it. The condenser has an important job to do.

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It is responsible for discharging the heat removed from the air by releasing it outside of the building. If the coils are dirty, it will interfere with the transfer of heat and make your unit worker harder and add to the wear and tear on your system. This coil contains refrigerant that absorbs heat. When airflow is diminished, a layer of ice can form on the evaporator coil. If this occurs, you could end up with warm air or no air from your air conditioner supply registers.

17 Most Common Air Conditioner Problems

Though a central air conditioning system is seemingly a sealed system with the ductwork running through walls and ceilings, it is not unusual for tears to develop in your ductwork, sometimes as the result of rodents or inattentive workers. The air ducts carry the return air to your system for treatment and cooling. Leaky air ducts can make the entire home warmer, which will make your system work harder and increase your electric bills.

Drainage difficulties Where does the moisture removed by your air conditioner go?

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It is designed to be removed from your space through a drain line into a pan and then is funneled into a drain. If the drain is clogged and the pan overflows, the water will back up and damage your system. The backup can cause water leaks that can damage your building and its contents.Learn about the most common causes of air conditioner problems and the easy steps you can take to prevent repair issues. Low refrigerant.

The refrigerant is the stuff that your air conditioner uses to remove the heat and humidity from the air in your home or business. If your system develops leaks in the refrigerant lines, you can end up with not enough refrigerant to effectively cool the air.

Unfortunately, fixing this air conditioner problem correctly is not just a matter of replacing the refrigerant. An HVAC repair technician needs to find the leaks and repair the holes in the lines, which can sometimes be a time-consuming and expensive process, especially when there are multiple leaks.

The 10 Most Common Air Conditioning Problems

Frozen evaporator coils. It may sound counter-intuitive, but those coils need warm air circulating around them to work properly. When something goes wrong with the airflow and the evaporator coil gets too cold, a layer of ice can build up on the outside.

Dirty condenser coils. This is a very common problem in NYC with all the soot and pollution in the air. When it happens, heat transfer is impeded, and your unit has to work harder to do its job, leading increased wear on the parts and even system failure. Fan problems. If you neglect the problem, it can lead to compressor failure, which is often a death sentence for your air conditioner.

Leaking ducts. The ductwork that runs through your walls and ceilings carries the cooled air from the air conditioner throughout your space. And, of course, this scenario causes your air conditioner to work harder and drive up your energy bills. Thermostat problems. This problem is fairly easy to fix by replacing or recalibrating your thermostats. If you have new programmable thermostats, sometimes these are tricky to program and they may be set incorrectly.

Clogged drains. All the moisture that your air conditioner removes from the air has to go somewhere. If the line or drain gets clogged or the pan gets full, the water can back up and damage your system. You can also wind up with water leaks that damage your walls, ceilings, and furnishings. Replace dirty air filters. Air flow problems that lead to coils freezing are often caused by clogged air filters. Inspect ducts and repair any holes. Install a programmable thermostat and learn how to use it.

Eliminate issues with older control systems by installing new thermostats, which are more precise and save energy. You can even get thermostats that can be controlled remotely using your smartphone or tablet.

Clear brush and debris from around the outdoor unit. Virtually all of the most common causes of air conditioner problems can be easily prevented with regular maintenance. Have an HVAC expert come in to inspect and tune up your system each spring before starting it up for the first time.

Want to learn more about finding the right contract and service provider for you? Top 7 causes of air conditioner problems: 1. All contracts are not created equal.When the temperature rises during the summer months, a malfunctioning or inefficient portable air conditioner can be a serious concern. Not only would you be uncomfortable in a hot and humid setting, but you may also have to bear a higher electricity bill.

When a portable AC unit is not functioning properly, it is almost certainly drawing more power to make up for its inefficiency. There are common portable air conditioner problems and solutions that can be attended to and completely remedied without any help from a specialist. Here is a comprehensive portable air conditioner troubleshooting guide that sheds light on the most common issues that you will come across and how to repair them at home.

As you will see below, most of the common problems that you will face with a portable air conditioner can be fixed relatively quickly and easily. However, there will come a time when your device has reached the end of its life or costs too much money to have repaired by a professional. If that is the case, then you should probably replace the appliance with a new one. Take a look at our free guide on the best portable AC unit models.

It shows you what features to consider and how to find the best one for any size room.

How to Repair Central Air Conditioners

We also have another guide with cheap portable air conditioner reviews for those of you who are budget conscious. If every other appliance or the lights in the room are working, then you should check the specific power outlet of the air conditioner.

Check if the socket has power, check the cord to see if it is damaged, check the circuit breaker to see if it is functioning properly, reset the circuit or use another outlet to see if the appliance starts. If there is no problem in any of those components then there is something wrong with the portable air conditioner, which can be as simple as a blown internal fuse.

Consult the manual to see if you have access to the fuses. If not, this task is better left for a professional since the entire appliance will have to be opened up to replace a fuse.

air conditioner problems

A portable air conditioner may suddenly shut down if a timer was active. Restart it again and see if it stops again without the timer being active. Some models of portable AC units shut down when the temperature set by the user is achieved and the room is just a notch cooler than the outside or ambient temperature.

How to Fix Car AC that Blows Hot Air (AC Compressor)

When the temperature in the room rises up too or is higher than the outside or ambient temperature, the system will work again.

When troubleshooting this portable air conditioner problem, first clean the filter to get rid of any dust or dirt that has been trapped inside it. Use a vacuum or brush.

Frost build up can also limit airflow. Check for frost in the cooling or evaporator coils. Debris in the system, frost or any kind of obstruction will adversely affect airflow.

Many portable air conditioners come with a defrost feature. Use this to get rid of frost. An overheated compressor may also lead to lack of airflow. Inspect the window section of the portable AC unit and the hose to see if there is adequate ventilation. Depleting refrigerant can also affect air flow.

If the all of the other solutions fail to fix this problem, have a technician check for a refrigerant leak and if the compressor is on the fritz.

This is another very common portable air conditioner troubleshooting issue and the solution is usually not as bad as it may seem. Similar to the last problem mentioned, to diagnose the problem of the portable AC not cooling enough, first check the filter and see if it is clogged or dirty.

If it is, clean it.If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

Improper installation of a central air conditioner can result in leaky ducts and low airflow. Many times, the refrigerant charge the amount of refrigerant in the system does not match the manufacturer's specifications. If proper refrigerant charging is not performed during installation, the performance and efficiency of the unit is impaired.

Unqualified service technicians often fail to find refrigerant charging problems or even worsen existing problems by adding refrigerant to a system that is already full. Air conditioner manufacturers generally make rugged, high quality products. If your air conditioner fails, begin by checking any fuses or circuit breakers. Let the unit cool down for about five minutes before resetting any breakers.

If a central air conditioner's compressor stops on a hot day, the high-pressure limit switch may have tripped; reset it by pushing the button, located in the compressor's access panel.

If your air conditioner is low on refrigerant, either it was undercharged at installation or it leaks. If it leaks, simply adding refrigerant is not a solution. A trained technician should fix any leak, test the repair, and then charge the system with the correct amount of refrigerant. Remember that the performance and efficiency of your air conditioner is greatest when the refrigerant charge exactly matches the manufacturer's specification, and is neither undercharged nor overcharged.

Refrigerant leaks can also be harmful to the environment. If you allow filters and air conditioning coils to become dirty, the air conditioner will not work properly, and the compressor or fans are likely to fail prematurely. The compressor and fan controls can wear out, especially when the air conditioner turns on and off frequently, as is common when a system is oversized.

Because corrosion of wire and terminals is also a problem in many systems, electrical connections and contacts should be checked during a professional service call.

Room air conditioners feature a thermostat sensor, located behind the control panel, which measures the temperature of air coming into the evaporative coil. If the sensor is knocked out of position, the air conditioner could cycle constantly or behave erratically. The sensor should be near the coil but not touching it; adjust its position by carefully bending the wire that holds it in place.

When it's humid outside, check the condensate drain to make sure it isn't clogged and is draining properly. Room air conditioners may not drain properly if not mounted level. Skip to main content. A refrigerant leak is one common air conditioning problem. Refrigerant Leaks. Inadequate Maintenance. Electric Control Failure.

air conditioner problems

Sensor Problems. Drainage Problems. Learn More Links. Air Conditioning. Air Conditioning Learn More. Room Air Conditioners Learn More. Central Air Conditioning Learn More.Air conditioning is a necessity in Florida, and life can be pretty unbearable if your air conditioner goes out. Some are monthly, others every three months, while some are reusable and should be cleaned when they are dirty. One way to determine if a filter needs to be cleaned is to check if any light passes through it.

air conditioner problems

Dirty filters not only reduce the flow of air but can also cause the AC unit to freeze. If problems persist, there may be another issue. When the coolant starts leaking in the air conditionerthe unit will not perform correctly, and the temperature will fluctuate.

The location of the leak will affect the cost of the repair so having this examined yearly by a trained AC technician is advised. Like the filter, the drain line can become clogged with dirt, dust, and lint.

If it becomes clogged, the drain pan will fill up, and water will leak out potentially causing damage to the AC unit or whatever is around your pan. Often when a motor dies, one of the first parts the HVAC technician checks is the breaker. The start capacitor sends a jolt to activate the motor, while the run capacitor provides a series of jolts to keep the motor working.

The compressor applies energy to the refrigerant and propels it through the coils to carry out heat exchange. If the compressor is not workingthe AC unit will not cool your house.

Evaporator coils absorb heat in the air and send it back into the house as cold air using a series of air ducts.

Coils can become corroded, but if they are located inside, they typically only require maintenance every three years. Condenser coils are located outside with the compressor so they can become dirty due to the elements. They can usually be cleaned with a water hose once a year, but if they get too dirty, an HVAC technician will have to clean them with a chemical cleaner.

In an AC unit, there are contactors for the compressor, the blower motor, and the condenser fan motor. They make an electrical connection that starts the motors and compressor.

Before we head into the dog days of summer, contact Easy AC to schedule maintenance or repair to make sure your AC unit is running smoothly. For your convenience, we offer an affordable AC maintenance package, the EZ Breezy Clubto help eliminate you having to deal with common air conditioning problems.

Give us a call today! Call Now! Website Development by Revital Agency.We respect your privacy. All email addresses you provide will be used just for sending this story.

Like any appliance, air conditioners need a little TLC to deliver optimal performance. They highlighted eight problems to troubleshoot now. The No. Here are eight questions to ask that will help you keep your AC at peak performance all summer long. Is the Filter Dirty? No matter which type of air conditioner you have, a clogged filter restricts airflow, decreasing efficiency and reducing the ability to effectively cool the air. Just keep in mind that if your system is running constantly or if you have pets, you will need to change your filters more often.

Is It Too Sunny Inside? If you have a choice, move it to a shadier spot. If not, keep your shades and curtains drawn during the day to block the sun and prevent it from heating up your house. Is Warm Air Leaking In? Reseal around your unit with weather stripping if necessary.

Air conditioners make plenty of noise, including from the whir of the fan and the sound of the compressor cycling on and off. These noises are normal. But if you hear a vibrating noise, it may mean that your unit was installed incorrectly. Is the Thermostat on the Right Setting? Are the Registers Dirty or Blocked? If you have a forced-air heating and cooling systemregularly vacuum the registers to remove any dust buildup.

Are Plants Crowding the Compressor? There should also be 5 feet of clearance between the top of the unit and any trees above. Did You Remember the Annual Checkup? An inspection by an HVAC heating, ventilation, and air conditioning technician can catch any serious problems before they get worse and leave you hot and bothered.

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