Want to Know Why Won’t Your AC Turn On?

As the summer heat settles in Charleston, a working air conditioning system becomes an important tool for comfort and relief. However, nothing can be more frustrating than discovering that your AC won’t turn on when you need it the most. At AGL Heating and Air, Charleston SC, we understand the importance of a functional cooling system, and in this blog, we’ll discuss some common reasons why your AC isn’t working properly and provide solutions to fix it.

Dirty Air Filters

One of the first things to check is your air filter. Air filters play a crucial role in maintaining your air quality and system efficiency. Over time, these filters can become clogged with dust, debris, and pollutants, impeding the airflow to your AC unit. Reduced airflow can prevent the system from turning on if it is overheating. It can also decrease the AC system’s ability to properly cool your home. Regularly inspect and replace your air filters every 1-3 months, especially during peak usage periods, to avoid this issue.

Condensate Drainage Problems

AC units produce condensation as they cool the air, which is collected and drained through a dedicated pipe. If this drain line becomes clogged or blocked, the accumulation of water can trigger a sensor that shuts down the thermostat or the system to prevent water damage. A visual inspection of the drain line and clearing any obstructions can often resolve this issue. However, it’s recommended to have your condensate drain professionally cleaned by your local Charleston, SC, HVAC service and maintained to prevent future clogs.

Power Supply Issues

As simple as it may be, sometimes the power could be off. Start by checking the circuit breaker panel to ensure that the breaker for your Charleston, SC, HVAC system hasn’t tripped. If it has, reset it and see if that resolves the issue. However, a frequently tripping breaker indicates an underlying electrical problem that requires professional attention. Additionally, check that the AC unit is properly plugged in and there are no loose connections. Faulty or worn-out wiring may also disrupt power flow and prevent the AC from starting.

Thermostat Troubles

The thermostat serves as the control center for your AC system, and malfunctions can often be the reason behind a non-responsive AC. Begin troubleshooting by ensuring that the thermostat is set to the “cool” mode and the desired temperature is lower than the current room temperature. Although many thermostats do not use batteries, it’s worth checking and replacing the batteries in your thermostat, as a depleted battery can cause it to lose communication with the AC unit. In some cases, a faulty thermostat may need to be replaced altogether.

Faulty Capacitor

The capacitor is an electrical component that provides a jolt of energy to start the AC’s compressor and fan motors. Over time, capacitors can degrade or fail, resulting in an unresponsive AC. If you notice a humming sound from the AC unit but it doesn’t start, a faulty capacitor is a likely culprit. Capacitor replacement should be handled by a qualified Charleston HVAC contractor to ensure proper installation and prevent any safety hazards.

Refrigerant Leaks

Refrigerant is the lifeline of your AC system, and a refrigerant leak can significantly impact its performance. Low refrigerant levels can trigger safety features that prevent the system from turning on to avoid damage. If you think there is a refrigerant leak, it’s important to contact your Charleston, SC air conditioning and heating services, such as AGL Heating and Air, who can locate and repair the leak.

When your AC won’t turn on, it can be a frustrating experience, especially during hot summer days in Charleston. However, by understanding the common causes of AC failures and finding the solutions, you may be able to resolve some issues on your own. If you encounter more complex problems or are unsure about how to proceed, don’t hesitate to contact us at AGL Heating and Air for Charleston, SC high-quality heating and air services. Our experienced trane comfort specialists are ready to diagnose and repair any AC issues, ensuring your home stays cool and comfortable throughout the summer. Don’t let a malfunctioning AC system disrupt your comfort — reach out to us at AGL Heating and Air today for reliable and efficient Charleston HVAC services.