If your air conditioner in Dallas, TX is running but your home is still warm, several common issues may be causing the problem. Many cooling failures start with small electrical components, airflow restrictions, or thermostat settings rather than major system breakdowns.

Dallas HVAC Parts is open to the public and helps homeowners troubleshoot common AC problems before spending money on large repairs. We guide customers through basic diagnostic steps so they can determine whether a capacitor, contactor, motor, or simple maintenance issue is responsible.

Before replacing expensive parts or calling for major service, visit our Garland location with your old component or unit model number. We’ll help you narrow down the issue and match the correct part if needed.

Before replacing expensive parts, call us or bring your old component!

Most Common Reasons AC Stops Cooling:

• Dirty Air Filter – Restricts airflow and lowers efficiency.

• Low Refrigerant – Leaks prevent proper cooling.

• Dirty Condenser Coils – Reduces heat transfer outdoors.

• Faulty Compressor – Stops the system from circulating refrigerant.

• Bad Capacitors – Prevent fan or compressor from starting.

• Malfunctioning Fan Motors – Limits airflow over coils.

• Electrical Issues – Tripped breakers or faulty wiring can shut down the system.

• Thermostat Problems – Incorrect settings or dead batteries.

• Blocked or Leaky Ducts – Reduces airflow to rooms.

Visit us in-store and let’s find exactly what you need!