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Why Does My AC Breaker Keep Tripping?

It’s a sweltering day and you’re relying on your air conditioner to keep your home cool and comfortable. Suddenly, the AC stops working and you discover that the circuit breaker has tripped again. If you’re frequently asking yourself, “Why does my AC breaker keep tripping?” then you’re not alone. This is a common issue many homeowners face, but understanding the root causes can help you solve the problem effectively.

1. Overloaded Circuit

One of the primary reasons your AC breaker keeps tripping is due to an overloaded circuit. This happens when your air conditioning unit draws more electrical power than the circuit can handle. It’s essential to ensure that your AC has a dedicated circuit breaker to prevent overloading. If other appliances share the breaker with your AC, consider rearranging your setup or consulting an electrician to handle the increased load.

2. Short Circuit in the AC Unit

A short circuit in your air conditioning system could be another culprit when your AC keeps tripping breaker. A short occurs when an electrical current takes an unintended path, causing a sudden surge of power that trips the breaker. This can be due to faulty wiring or problems within the AC unit itself, such as a malfunctioning compressor or motor. Regular maintenance checks can identify and correct these issues before they lead to a tripped breaker.

3. Ground Fault Issue

Similar to a short circuit, a ground fault in your AC unit can cause your AC tripping breaker scenario. A ground fault occurs when there is a break in the grounding path from the AC unit back to the ground. Like short circuits, ground faults are potentially dangerous and require immediate attention to fix properly. This usually involves inspecting the AC unit’s wiring and components to find and repair any ground faults.

4. Dirty Air Filters

Sometimes, the answer to “Why does my AC breaker keep tripping?” is as simple as a clogged air filter. When air filters are dirty, they restrict airflow, causing the AC unit to work harder and draw more power, which can trip the breaker. Regularly checking and replacing your air filters can prevent this issue and keep your AC running efficiently.

5. Capacitor Problems

The capacitor in your AC unit helps the motor start and run efficiently. If the capacitor is failing, it can cause the motor to consume more electrical power, leading to your AC breaker tripping frequently. Capacitors can degrade over time and may need replacement to ensure your system operates without tripping the breaker.

6. Improper AC Installation

Improper installation of your AC unit can also lead to frequent breaker trips. This can include issues like incorrect sizing of the breaker for the AC’s power needs or faulty wiring during the installation process. It’s crucial to have a professional ensure that your AC unit is installed correctly to avoid any electrical mishaps.

How Do I Stop My AC from Tripping the Breaker?

Addressing this question requires a systematic approach. Start by checking the most common issues, such as overloaded circuits, dirty air filters, and ensure that your AC has its dedicated circuit. If the problem persists, it’s advisable to contact a professional technician who can diagnose and fix the issue, whether it involves electrical repairs or part replacements.


In conclusion, understanding and addressing the reasons why your AC breaker keeps tripping are key to maintaining a cool and comfortable environment in your home. Regular maintenance and timely repairs can help prevent these issues and extend the life of your AC unit. If you’re experiencing persistent problems with your AC unit, don’t hesitate to reach out to The Comfort Authority. Our team of experts is ready to provide you with efficient and reliable solutions to keep your AC running smoothly. Contact us today to schedule a consultation and ensure your home stays cool all summer long.