3 Common Reasons Why an AC Unit Overheats in Granite Falls, NC

When your air conditioner starts overheating and shutting down during hot summer days, it leaves you frustrated and uncomfortable. Understanding why an AC overheats helps you identify problems early and prevent costly repairs. Several common issues can cause your cooling system to overheat, from simple maintenance problems to more complex mechanical failures.

Hickory Heating and Cooling, LLC, has helped countless homeowners resolve overheating air conditioners through professional AC repairs in Granite Falls, NC. In this guide, we will answer your question, "Why is my AC overheating?" and provide solutions to address this issue.

1. Clogged Filters and Dirty Condenser Coils Block Airflow

Restricted airflow causes most AC overheating problems in Granite Falls, NC. When components become dirty, your air conditioner works harder and generates excess heat.

A clogged air filter blocks airflow to critical components, forcing your air conditioner compressor to work overtime until it overheats and shuts down. Dust and debris collect on outdoor coils, which act like insulation, trapping heat that should be released outside. This forces your compressor to run continuously without reaching your desired temperature.

Common problems due to inadequate airflow include:

• Reduced circulation: Blocked filters prevent proper air movement.
• Ice formation: Trapped cool air causes coil freezing.
• Higher energy costs: The system runs longer to cool your home.

2. Low Refrigerant Levels Create System Strain in Granite Falls

Refrigerant absorbs heat from your home and releases it outdoors. When refrigerant levels drop due to leaks, your air conditioner struggles to maintain proper cooling.

"Why is my AC overheating?" Low refrigerant levels force your compressor to work much harder than designed. Without adequate refrigerant, the system cannot transfer heat effectively, causing components to overheat while failing to cool your home.

Signs of low refrigerant include:

• Hissing sounds: These indicate refrigerant leaks in your system.
• Warm air from vents: Insufficient refrigerant prevents proper cooling.
• Ice on coils: Low levels disrupt the normal heat exchange process.

Professional AC maintenance helps identify and address refrigerant issues before they cause serious damage. Unlike other fluids, refrigerant operates in a closed system and should not decrease under normal conditions, so low levels typically indicate leaks that require professional repairs.

3. Electrical Problems Disrupt Normal Operation

Electrical issues in Granite Falls homes create stress on cooling systems and frequently cause overheating. When electrical components malfunction, they make your system work inefficiently or trigger safety shutdowns.

A thermostat malfunction can cause your system to run continuously without cycling properly. When your thermostat fails to provide accurate readings, your AC may continue to run, generating excessive heat.

Common electrical issues include:

• Faulty wiring: Damaged connections create resistance and heat buildup.
• Capacitor problems: Failed capacitors prevent proper motor operation.
• Relay malfunctions: Broken relays disrupt normal system cycling.

Electrical issues require immediate professional attention to prevent safety hazards and equipment damage. These problems often worsen quickly and can cause permanent damage to expensive components like compressors and motors.

Hickory Heating and Cooling, LLC, Keeps Your AC Running Efficiently in Granite Falls

Understanding the causes of AC overheating helps you recognize warning signs and take preventive action. Regular maintenance and prompt repairs prevent most overheating issues.

At Hickory Heating and Cooling, LLC, we specialize in diagnosing and repairing overheating air conditioners in Granite Falls, NC. Our experienced technicians can also help with AC freezing issues due to dirty coils and other cooling problems. With decades of experience, we provide reliable solutions that keep your home comfortable.

Don't let an inefficient AC leave you sweating! If you're wondering, "Why is my AC overheating?" in Granite Falls, call Hickory Heating and Cooling, LLC, today for fast, professional repair services.



Frequently Asked Questions

Understanding these common concerns about AC overheating helps homeowners make informed decisions about their cooling systems:

How Often Should I Change My Air Filter To Prevent Overheating?

Replace your air filter every one to three months, depending on usage and home conditions. Homes with pets, smokers, or high dust levels need more frequent changes to prevent airflow restrictions that cause overheating.

Can I Continue Using My AC if It's Overheating?

Never continue operating an overheating air conditioner, as this can cause permanent damage to expensive components like the compressor. Turn off your system immediately and contact a professional technician for diagnostics and repairs.

What Should I Do When My AC Overheats and Shuts Down?

If you're wondering, "Why is my AC overheating?" then turn it off at the thermostat and circuit breaker, then wait at least 30 minutes before attempting to restart. If the problem persists, contact a qualified HVAC technician in Granite Falls, NC, to prevent further damage to your cooling system.