Wednesday, June 19, 2024

AC Not Working? Here Are 6 Common Issues & Solutions

It’s a scorching summer day, and you’re looking forward to stepping into your cool, air-conditioned home. But as you open the door, you’re greeted with nothing but stifling heat. If your AC isn’t working properly, it can quickly turn a comfortable oasis into an unbearable environment.

But fear not! In this guide, we’ll explore six common issues that may be causing your AC woes and provide simple solutions to get your cool air flowing again.

1. Dirty Air Filter

One of the most common culprits behind an AC malfunction is a dirty air filter. Over time, dust and debris accumulate in the filter, restricting airflow and reducing the efficiency of your system. The solution? Regularly check and replace your air filter, usually every 1-3 months, to ensure proper airflow and optimal performance.

2. Refrigerant Leaks

Refrigerant is the lifeblood of your air conditioning system, responsible for cooling the air that circulates throughout your home. However, leaks can occur over time, leading to decreased cooling capacity and potential damage to your AC unit.

If you suspect a refrigerant leak, it’s essential to contact a professional HVAC technician to locate and repair the leak, as well as recharge your system with the correct amount of refrigerant.

3. Faulty Thermostat

Sometimes the issue lies not with the AC unit itself but with the thermostat that controls it. A faulty thermostat can cause inaccurate temperature readings, leading to improper cooling or heating cycles. Before calling for ac services, try replacing the batteries in your thermostat and ensuring its set to the correct temperature. If the problem persists, you may need to replace the thermostat altogether.

4. Blocked Condenser Unit

The condenser unit, located outside your home, plays a crucial role in releasing heat from the refrigerant and maintaining optimal cooling efficiency. However, it can become blocked by debris such as leaves, grass clippings, or even overgrown vegetation.

To remedy this issue, regularly inspect the area around your condenser unit and remove any obstructions to ensure proper airflow.

5. Dirty Evaporator Coils

Over time, the evaporator coils inside your AC unit can accumulate dirt and grime, hindering their ability to absorb heat and cool the air effectively. To clean the coils, turn off the power to your AC unit and carefully remove any visible debris using a soft brush or vacuum cleaner.

For a more thorough cleaning, consider scheduling professional AC system solutions to ensure your coils are free from dirt and debris.

6. Electrical Issues

If your AC unit isn’t turning on at all, the problem may stem from electrical issues such as a blown fuse, tripped circuit breaker, or faulty wiring. Check your circuit breaker panel to see if any switches have been tripped, and replace any blown fuses as needed.

If you’re uncomfortable working with electrical components, it’s best to leave this task to a qualified electrician or HVAC technician.


Dealing with a malfunctioning AC unit can be a frustrating experience, especially during the sweltering summer months. However, by identifying common issues and implementing simple solutions, you can get your AC back up and running in no time.

Remember to regularly check and replace your air filter, keep your condenser unit free from obstructions, and schedule professional AC services as needed to ensure your system stays in peak condition. With these tips in mind, you can enjoy cool, refreshing air all summer long.

Latest Articles