Hot and Bothered? Find Out Why Your AC Isn't Turning On and How to Fix It
June 14, 2024

Hot and Bothered? Find Out Why Your AC Isn't Turning On and How to Fix It

The sweltering summer heat in Texas can be unbearable without a properly functioning air conditioner. At DT Air Conditioning & Heating in Plano, TX, we understand how crucial it is to keep your home cool and comfortable. When your AC stops working, it’s more than just an inconvenience – it can quickly become a serious problem. Here are some common reasons why your air conditioner might not be working and how our professional team can help.

Common Reasons Your Air Conditioner Isn’t Working

1. Thermostat Issues

Your thermostat is the control center of your air conditioning system. If it's malfunctioning or dead, your AC won't receive the proper signals to turn on. Common signs of thermostat issues include an unresponsive display or the AC not responding to temperature changes. If you suspect a thermostat problem, call us immediately. Our experts can diagnose and replace faulty thermostats to restore your comfort.

2. Electrical Issues

Electrical problems are a common cause of AC failures. These can include:

  • Breaker Switch is Off: The breaker switch may trip due to power surges. If your AC isn’t turning on, it might be due to a tripped breaker.
  • Blown Fuse: Similar to a circuit breaker, a fuse can blow during a power surge, cutting off power to your AC unit.
  • Faulty Power Cord or Outlet: Damaged power cords or outlets can prevent your AC from receiving power.

Electrical issues require professional attention to ensure safety and proper function. Contact DT Air Conditioning & Heating to inspect and resolve any electrical problems.

3. Switch Problems

Air conditioning systems have various switches that control power flow. These include:

  • Indoor Shutoff Switch: Often mistaken for a light switch, this can accidentally be turned off.
  • Outdoor Shutoff Switch: This switch might be turned off during maintenance and forgotten.

If the air conditioner still doesn’t turn on after you have reset the breaker, there may be a more serious underlying issue. Our technicians can quickly identify and correct these switch problems, ensuring your AC unit receives the power it needs.

4. Component Failures

Several critical components within your AC unit can fail, leading to system malfunctions:

  • Capacitor Failure: The capacitor gives the motor the initial push to start. A dead capacitor will prevent your AC from starting.
  • Damaged Motor: A faulty motor can cause your AC to make unusual noises or fail to start.

These components require professional diagnostics and replacement. Our team is equipped to handle these issues efficiently, restoring your AC’s functionality.

5. Maintenance Issues

Regular maintenance is key to preventing many common AC problems:

  • Low Refrigerant: Refrigerant is essential for cooling, and low levels often indicate a leak. Only professionals can properly recharge refrigerant levels and fix leaks.
  • Clogged Air Filters: Dirty filters restrict airflow, causing the AC to freeze and stop working.
  • Dirty Coils: Both indoor and outdoor coils need to be clean for efficient operation. Dirty coils can prevent proper cooling.
  • Clogged Drain Pan: A blocked drain pan can trigger safety switches that turn off your AC.

At DT Air Conditioning & Heating, we offer comprehensive maintenance services to keep your system running smoothly and prevent these issues.

Other Common Issues

Some other problems that might affect your AC include:

  • Dormancy Issues: If your AC has been unused for a long time, components like the fan may become stuck.
  • Ice Buildup: Ice on the coils can prevent your AC from working properly.
  • Incorrect AC Size: An AC unit that is too large or too small for your home will not operate efficiently.
  • AC Lifespan: Older units may simply be at the end of their lifespan.

These issues can be complex and often require professional evaluation. Our team can assess and address these problems, recommending repairs or replacements as necessary.

Call DT Air Conditioning & Heating for Professional Help

When your air conditioner isn’t working, don’t suffer in the heat. At DT Air Conditioning & Heating, our experienced technicians are ready to diagnose and fix any AC issue, ensuring your home stays cool and comfortable. We pride ourselves on providing prompt, reliable, and professional service to the Plano, TX community. Contact us today to schedule an appointment and let us keep your air conditioning system running at its best.

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