5 Causes of Air Conditioning Condenser Problems

Monday, January 10th, 2022
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Nothing like the hot summer weather makes you thankful for your air conditioning unit. However, when your AC starts to give you problems, it can quickly become a source of frustration. If your air conditioning condenser is not functioning correctly, it’s essential to identify the cause and take steps to fix it. This blog post will discuss some of the most common causes of air conditioning condenser problems. We’ll also provide tips on how to troubleshoot and repair them. So if your AC is giving you trouble, be sure to read on!

How Do Air Conditioning Condensers Work?

Air conditioning condensers work by transferring heat from the indoor unit to the outdoor unit. The refrigerant in the system circulates throughout the system, absorbing heat from the indoor air and then releasing it outdoors. This process allows your air conditioner to cool the indoor air.

Air conditioning condensers contain an evaporator coil and a condenser coil. The evaporator coil is located inside the indoor unit and is responsible for absorbing heat from the air. The condenser coil is located outside of the house and releases heat to the outside environment.

Causes of Air Conditioning Condenser Problems

Blocked Airflow

One of the most common causes of air conditioning condenser problems is blocked airflow. Air conditioners need to draw in cool air from the surrounding area to function correctly. If the unit is blocked off by something like a shrub or fence, then the air won’t get to the condenser and will overheat. This is a widespread problem, especially if pets like to rub up against or sleep under the unit. Air conditioners also need good vents to function correctly, and even if your unit is blowing out cool air, it may still overheat if there isn’t enough airflow reaching the condenser.

Bent Fins

Another common cause of air conditioning condenser problems is bent fins. The fins on the condenser are responsible for transferring the heat from the refrigerant to the air, and if they’re bent, they can’t do their job correctly. This can cause the unit to overheat, and it may also reduce the air conditioner’s efficiency.

If you think your fins may be bent, you can try straightening them out yourself using a fin comb. If that doesn’t work, then you’ll need to call a professional to have it fixed.

Dirty Coils

The coils on the condenser need to be kept clean to function correctly, and if they get too dirty, the unit will overheat. You can clean the coils yourself by using a coil brush or vacuum cleaner, or you can call a professional to do it for you.

Climb on top of the air conditioning condenser and use a hose to spray down the coils with water until they’re wet. Use an old toothbrush dipped in vinegar to scrub any caked-on dirt off of the coils, rinsing them with water after you’ve finished.

If you see any signs of corrosion around the fins or on the compressor, you need to call a professional. Air conditioning condenser problems are best left to the professionals, so don’t attempt any DIY fixes unless you know what you’re doing.

Refrigerant Leak

Leaks in the refrigerant line can also cause air conditioning condenser problems. If there’s a leak in the line, the refrigerant will escape into the atmosphere instead of being reused. Air conditioners are super-efficient because they recycle their refrigerant, but if there’s a leak, this recycling is compromised, and the unit will have to work much harder to cool down your home.  

Fan Problems

If the fan on your air conditioning condenser is not working, it can cause the unit to overheat. Some of the problems that can develop on the condenser’s fan are bent blades, motor issues, or blown capacitor issues. Air conditioners need good airflow to work correctly, so if the fan is blocked, it’s not going to be able to do its job.

There are a few things that you can do to try to fix the problem yourself, but if it’s not working, then you’ll need to call a professional. The fan may be blocked off by something like a tree or bush, or it may be dirty and need to be cleaned. You can try cleaning it yourself using a vacuum cleaner or coil brush, or you can call a professional to do it for you. 


Air conditioning condenser problems can be caused by various factors, including bent fins, refrigerant leaks, dirty coils, and fan problems. If you’re experiencing any of these issues, then it’s best to call a professional to have them take a look. Air conditioners are susceptible machines and should only be handled by someone who knows what they’re doing.

In the meantime, you can try cleaning the coils or fan yourself using the tips that we’ve provided. Keep in mind that air conditioning condenser problems should not be taken lightly. If your unit is overworking itself, it will cause some severe damage. Make sure to keep an eye on your unit and call a professional as soon as you notice anything wrong.

To summarize, if you’d like to prevent having problems with your condenser coils, it is recommended to schedule your regular HVAC maintenance service with a trusted technician.

Your Trusted HVAC Professional in Granbury, TX

If you are experiencing any type of issue, whether it be an accident or wear and tear on the unit itself, we have all sorts of services we can offer you. From AC repairs for both residential clients and commercial spaces to HVAC installations or maintenance services, we make sure everyone’s needs are met no matter what! 

We, at Daffan Mechanical, are proud to provide exceptional service in the Granbury area. We’ve been working for over 20 years and always take pride in our work with competitive rates that fit your budget, as well as customer satisfaction! If you need help with an HVAC unit or anything else, please don’t hesitate to reach out today because we can handle all sorts of problems like no other company does!! Call us today at (817) 210-4787!

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