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How do you reset AC?

If your air conditioner (AC) is not functioning properly, resetting it may help resolve the issue. Resetting the AC can clear any temporary glitches or errors that may have occurred, allowing the system to restart and potentially fix the problem. Here's a step-by-step guide on how to reset your AC unit.


Steps to Reset Your Air Conditioner



  1. Locate the circuit breaker for your AC unit. This is typically located in your home's electrical panel or breaker box.

  2. Turn the circuit breaker to the "off" position. Wait for at least 30 seconds to a minute before turning it back to the "on" position.

  3. Once the circuit breaker is back on, wait for the AC unit to restart. This may take a few minutes, as the system needs to go through its startup sequence.

  4. If the AC unit does not start or the issue persists, you may need to reset the thermostat. Locate the thermostat and turn it off, then turn it back on after a few seconds.

  5. If the AC unit still does not start or the problem continues, you may need to perform a more thorough reset by disconnecting the power supply to the unit.


Disconnecting the power supply involves turning off the circuit breaker and then unplugging the AC unit from the power source. Wait for at least 30 minutes before reconnecting the power and turning the unit back on. This allows the system to fully reset and clear any lingering issues.


Reasons to Reset Your Air Conditioner


There are several reasons why you may need to reset your AC unit:



  • Temporary Glitches: Minor software or electrical issues can sometimes cause the AC unit to malfunction. Resetting the system can help clear these temporary glitches and allow the unit to function properly again.

  • Thermostat Issues: If the thermostat is not communicating correctly with the AC unit, resetting the thermostat may help resolve the problem.

  • Power Outages or Surges: Power interruptions or voltage spikes can sometimes cause the AC unit to malfunction. Resetting the system can help it recover from these events.

  • Firmware Updates: If you have recently updated the firmware on your AC unit, resetting the system may be necessary to ensure the new firmware is properly installed and functioning.


It's important to note that while resetting your AC unit can often resolve minor issues, it may not fix more complex problems. If the issue persists after resetting the system, it's best to contact a professional HVAC technician for further diagnosis and repair.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.