Living in North Texas means dealing with intense summer heat, where having a reliable air conditioning system is not just a comfort—it’s a necessity. At D-N-D Services, we’ve been helping homeowners across Rockwall and surrounding areas stay cool since 1997. Over the years, we’ve seen the same air conditioning problems pop up again and again. Here are the top five AC repair issues we commonly encounter in North Texas homes—and some guidance on how to handle or prevent them.
1. Low Refrigerant or Leaks
Your AC system depends on refrigerant to cool your home. When refrigerant levels are low, it’s usually a sign of a leak rather than a one-time loss. Unfortunately, just adding more refrigerant won’t solve the problem—it needs to be located, repaired, and recharged properly. Signs of low refrigerant include warm air from vents, ice on the refrigerant lines, or increased energy bills. If left unaddressed, this issue can reduce efficiency and put extra strain on your AC components.
2. Dirty or Clogged Filters
Clogged filters are one of the most common—and most avoidable—AC problems. A dirty filter restricts airflow, forcing your system to work harder and less efficiently. This can lead to frozen coils, overheating, and a drop in indoor air quality. To avoid this, replace your air filters every one to three months, especially during heavy usage seasons. Regular filter changes not only improve performance but also extend your system’s lifespan.
3. Faulty Capacitors or Electrical Failures
With long stretches of triple-digit temperatures in North Texas, your AC system’s electrical components take a beating. Capacitors, in particular, are essential for starting and running the motors in your unit. When they go bad, your system may not start, may struggle to stay on, or make clicking sounds. Electrical failures are not DIY-friendly issues and should be addressed by trained technicians. Our team at D-N-D Services can safely test and replace these parts to restore your system’s functionality.
4. Frozen Evaporator Coils
Evaporator coils absorb heat from your home, allowing your AC to cool the air efficiently. If the coils freeze, it stops the heat transfer process. This can be caused by poor airflow, low refrigerant levels, or fan issues. If you notice ice on your unit or feel weak airflow, turn the system off and schedule a service call. Continuing to operate an AC with frozen coils can lead to compressor damage—a costly fix.
5. Poor Airflow or Ductwork Issues
Ductwork problems are especially common in older homes or homes with poorly designed or aging HVAC systems. Leaky or undersized ducts can restrict airflow and create hot or cold spots throughout your home. Dirty ducts can also circulate allergens and dust, affecting indoor air quality. We offer full duct evaluations, including inspections, cleaning, sealing, and replacement services. Our team also performs manual J load calculations to ensure your HVAC system is properly sized and distributed for your specific home layout.
Trusted AC Repair in Rockwall and Surrounding Areas
At D-N-D Services, we understand the frustration that comes with AC issues—especially during a North Texas summer. That’s why we’re committed to prompt, honest, and professional service. Whether you’re in Rockwall, Rowlett, Mesquite, Garland, Greenville, Dallas, or nearby, our experienced technicians are ready to help. We’re proud to be NATE certified, Texas licensed, and A+ rated by the Better Business Bureau. We work on all major brands and offer energy-efficient solutions tailored to your home or business. Need AC repairs, maintenance, or a quote on a new system? We’re just around the corner—and ready to exceed your expectations.
Conclusion
No homeowner wants to be caught off guard by a failing air conditioner in the peak of a Texas summer. By understanding the most common AC problems and knowing when to call in a professional, you can avoid costly breakdowns and stay cool when it matters most.
At D-N-D Services, we combine years of experience with certified expertise to keep your home comfortable all year long. Whether it’s routine maintenance, emergency repairs, or installing a new energy-efficient system, we’re here to help.
Give us a call today and let us show you why we’re one of the top-rated HVAC companies in North Texas.
D-N-D Services Heating & Air Conditioning is the premier choice for HVAC services in Rockwall. With a team of highly trained and certified technicians, we have the expertise to handle all of your heating, ventilation, and air conditioning needs. Our commitment to customer satisfaction is unmatched, and we always go above and beyond to ensure that your experience with us is positive. We use only the highest quality parts and equipment to ensure that your HVAC system is running at peak performance. Plus, we offer competitive pricing and flexible scheduling to fit your needs. Choose D-N-D Services Heating & Air Conditioning for all of your HVAC needs in Rockwall.
