12 Most Common Air-Conditioning Problems


Air Conditioning Installation Service

Air conditioners are necessary, especially if you live in hot regions or the summer heat is too intense. Surviving the intense summer heat can be a bad experience if your air-conditioning system decides to cause problems during a period of intense heat. You should hire a licensed and experienced expert for your AC repair. You can check this link summersphc.com/muncie/services/cooling/ac-repair/ for more details.

There are lots of people whose air conditioners give up on them midsummer. This can happen even if the air conditioner doesn’t show any faulty signs. This is because air conditioners are designed to be long-lasting, dependable, and durable.

Even with the manufacturers’ warranty, the system can pack up at any time, and many factors can cause this problem. This article will be highlighting 12 major air-conditioning problems and how you can easily resolve them.

12 Air Conditioning Problems And How To Resolve Them

  1. Faulty Wiring:

Faulty Wiring Check Up

If your AC unit’s wiring isn’t done properly, especially at the system installation, it may prevent the air-conditioning system from getting full power. In addition, a bad, haphazard air conditioner wiring is risky and can cause a possible fire outbreak.

Bad wiring prevents the unit from getting the full power it needs for efficient operation and trip the circuit breaker. Faulty wiring can also lead to the corrosion of sensitive terminals and wires, which leads to fire outbreaks, sometimes it may cause heating problems and the need to check the heating repair by professionals.

You should always inspect your air conditioner wiring system if you smell wire burning or see occasional sparks. Then it is advisable to turn off your unit and call a professional to check it out.

  1. Refrigerant Leaks:

Refrigerant Leaks

Refrigerant leaks are one of the most common problems in a faulty air-conditioning system. When the refrigerator coolant starts to leak, the air conditioner will not perform effectively, and the temperature will always fluctuate.

The refrigerant is the part of the air conditioner that makes it an air conditioner. A lot of factors can cause refrigerant leaks.

  • Formic acid can start to eat away the copper pipes and cause refrigerants to leak.
  • Basic wear and tear of the unit components, especially if it has stayed for some time.
  • A strong vibration or shock can weaken the seals between the pipes and damage the pipe itself.
  • A refrigerant leak can happen if the air conditioner is undercharged during installation.

Sometimes low refrigerants can be caused by human error and not necessarily a leak. The performance of your air conditioner is at the optimum best if the refrigerant charge fits the unit manufacturer’s specification.

Refrigerant leaks are harmful to the environment. Therefore, anytime you suspect a refrigerant leak, it is advisable to call in a professional to have your unit checked out.

  1. Drainage Problems:

Drainage Problems

Another major problem that can lead to a faulty air-conditioning system is drainage problems. When the weather is humid outside, you should inspect the condensate drain to ensure it is working properly.

A clogged drain can lead to a lot of problems that will eventually damage the air conditioner. Room air conditioners can also face drainage problems if they are not mounted properly.

  1. Electric Control Issues:

Air Conditioning Problems

Electrical connections and contacts are usually affected by an air-conditioning system. The compressor and fan tend to wear out, especially when the system turns on and off often. By virtue of that, a chance of heating repair occurs to prevent any other cause.

Maintaining the electrical control of your cooling system is important to stop your AC from developing a fault.

  1. Outside Fan Not Working:

Outside Fan Not Working

The outside fan’s job is to convey hot air or heat from your home to the outside air. If the outside fan is not performing at its best, heat will not be conveyed properly from your home outside.

This may cause the air conditioning compressor to overheat and even trip the safety overload. It can even cause internal damage to the compressor.

  1. Frozen Coil:

Frozen Coil

This is a problem encountered by most air-conditioning systems. A block causes a frozen coil in airflow, which is a direct result of dirty air filters. Low refrigerants in the air-conditioning system also cause frozen indoor coils.

To eliminate this problem, make sure you clean your air filters regularly and always check if your refrigerant is filled to the manufacturer’s specification.

  1. Sensor Problems:

Sensor Problems

Every room air conditioner has an inbuilt thermostat sensor, which measures the amount of air passing through the evaporative coil. The thermostat sensor is located near the control panel, and if knocked out of position, it can make the air conditioner starts working inefficiently.

To ensure the sensor is working perfectly, make sure it doesn’t touch the coil, just near it. You can adjust the wire by carefully bending and placing the wire that holds the thermostat in place.

  1. Compressor Problems:


The compressor helps carry out heat exchange by applying energy to the refrigerant and passing it through the coil. However, if the compressor is not working, then the air-conditioning system will not cool your home.

If there is not enough refrigerant, then the compressor will run too hot and eventually pack up. If there is too much refrigerant, some can return to the compressor and cause it to stop working.

  1. Condenser Coil:

Condenser Coil

The condenser coils are located outside the compressor, so there is a high possibility of getting dirty due to the elements. They can usually be cleaned with a water hose, but a professional can clean them with a specific chemical agent if they get too dirty for a water hose.

  1. Evaporator Coils:

Evaporator Coils

The evaporator coil’s job is to absorb heat in the air, pass it through some cooling ducts, and pass it inside your home as cool air. Unfortunately, these coils can become corroded over the years and require proper maintenance to keep them working at their optimum.

  1. Capacitors:


Without the air-conditioning system capacitor, the compressor and fans won’t work. There are two types of capacitors, the start capacitor, and the run capacitor. The start capacitor activates the motor, while the run capacitor keeps the motor running.

  1. Breakers And Fuses:

Breakers And Fuses

The breakers and fuses help safeguard the compressor and motors from overheating. When the motor or compressor dies, the first thing the repairman checks is the breaker.

The air conditioning system is still not working. Get a professional to do the job. Contact Apex Air Conditioning Sydney, the Commercial Air Conditioning Experts You Can Count On!

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Preeti Shah
Preeti Shah is a person who loves checking out different styles and designs of houses. She took interior designing in college and is practicing in the field of home improvement for five years now. In her spare time, she is usually searching the web for interesting and fascinating home designs.


  1. I’m glad you mentioned that professionals have a special chemical agent to clean the condenser coils of an AC unit more effectively than we can. My husband and I just bought a fixer-upper house in our neighborhood, and we want to have the air conditioning inspected and upgraded by a professional as part of the repairs. Thanks for giving me a better idea of the different services that professional HVAC services can provide! https://lakesideheating.com/ac-repair/

  2. My dad noticed that the air conditioners in his apartment building are not producing enough cool air, which is why he’s thinking of having them repaired. I’m not an expert in this; therefore, it never occurred to me that bad wiring may prevent the unit from getting full power. Thank you for also clarifying here that strong vibration may weaken the seals. https://econoac.com/heating-and-cooling-services/

  3. I appreciate you talking about all the different reasons why a refrigerant leak is harmful to the environment. As a person who wants to protect his surroundings as much as possible, I have to make sure this doesn’t happen to us when we leave our AC on for the holidays. I’ll make sure I get an HVAC expert to check our unit out before we settle in to prevent any issues.



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