The Top AC Repair Calls We Receive Every July

Understanding July AC Demands

July is often the hottest month of the year in Rockwall and surrounding areas, which means air conditioning systems are working harder than ever. Increased use can reveal hidden problems and stress older units. At D-N-D Services, we have been servicing all brands of HVAC equipment since 1997, and July is always one of our busiest months for repair calls. Recognizing the common issues can help homeowners and business owners prevent emergencies and keep their cooling systems running efficiently.

1. Frozen Evaporator Coils

Frozen coils are a frequent call in July due to constant system use. Ice can form for several reasons:

1. Restricted airflow caused by dirty filters or blocked vents.
2. Low refrigerant levels due to leaks or insufficient charge.
3. Dirty or damaged evaporator coils preventing proper heat absorption.
4. Mechanical issues with fans or blower motors reducing airflow.

When coils freeze, the AC cannot cool properly and may cause water damage as ice melts. Regular maintenance and professional inspections are key to preventing this problem.

2. Refrigerant Leaks

Low refrigerant is a major culprit during peak summer months when systems are under high stress. Signs of leaks include weak cooling, longer run times, and unusual hissing noises.

1. Leaks reduce system efficiency, making units work harder and increasing energy bills.
2. Leaks can cause evaporator coils to freeze, further impacting performance.
3. Attempting to add refrigerant without fixing the leak can damage the system.

D-N-D Services technicians are trained, certified, and licensed to locate and repair refrigerant leaks safely.

3. Tripped Breakers or Electrical Issues

High outdoor temperatures often lead to increased electricity usage, which can trip breakers or expose faulty wiring in the system.

1. Breaker trips can interrupt AC operation entirely.
2. Electrical faults can damage components like compressors or fan motors.
3. Professional diagnosis is essential to prevent further hazards or costly repairs.

Routine inspections can detect potential electrical issues before they turn into emergencies.

4. Uneven Cooling or Weak Airflow

July heat can highlight weak spots in cooling performance. Many homes experience inconsistent temperatures or insufficient airflow.

1. Dirty air filters, blocked vents, or leaky ductwork reduce airflow.
2. Undersized or aging systems struggle to keep up during peak heat.
3. Improper thermostat placement or sensor issues can create hot and cold zones.

A full system inspection, duct evaluation, and professional maintenance can resolve these issues efficiently.

5. Strange Noises from the AC Unit

Loud or unusual sounds often indicate wear and tear or mechanical failure.

1. Rattling or banging may signal loose components or debris in the system.
2. Squealing often points to worn belts or failing blower motors.
3. Hissing can indicate refrigerant leaks or pressure issues.

Early detection and professional repair can prevent complete system failure in the middle of a heatwave.

Preventing July AC Emergencies

Preparation is key to avoiding repair emergencies in July. Homeowners can take several steps:

1. Schedule routine maintenance and inspections before summer begins.
2. Replace air filters regularly to maintain airflow.
3. Ensure ducts are clean, sealed, and unobstructed.
4. Monitor system performance and address minor issues promptly.
5. Invest in energy-efficient upgrades for older units to reduce strain during peak months.

D-N-D Services also offers specialized residential and commercial maintenance programs designed to keep your system running smoothly throughout the hottest months of the year.

Conclusion

July is a challenging month for air conditioning systems in Rockwall and nearby areas. Frozen coils, refrigerant leaks, electrical issues, weak airflow, and unusual noises are the most common repair calls we receive. By understanding these problems and taking preventive measures, homeowners and business owners can avoid costly breakdowns and maintain a comfortable environment during the summer heat. With decades of experience, D-N-D Services provides professional inspections, repairs, and maintenance to ensure your AC system performs reliably, keeping your home or business cool when it matters most.