Air Conditioning

Carrier Air Conditioner Reset Button: How to Find and Use It

Carrier AC

Carrier air conditioners are renowned for their efficiency and durability, but like any appliance, they can experience issues that may require a quick reset. Many Carrier models feature a reset button that makes it easy to reboot the unit in case of malfunctions or after a power outage. If your Carrier air conditioner isn’t performing as expected, finding and using the reset button can often resolve the issue. Here’s a step-by-step guide to help you locate and use the reset button on your Carrier air conditioner.

Understanding the Reset Button

The reset button on a Carrier air conditioner is designed to restore the unit to its default factory settings, often solving issues related to electronic controls. It’s a handy tool for troubleshooting minor problems, such as a unit not turning on or not cooling effectively.

Step 1: Turn Off the Power

Before attempting to locate or press the reset button, ensure your safety by turning off the power to your air conditioner. You can do this either at the thermostat or at your home’s main circuit breaker.

Step 2: Locate the Reset Button

The reset button on a Carrier air conditioner is typically found on the outdoor unit. You’ll need to remove the access panel, which might require a screwdriver. The reset button is usually red or yellow and should be labeled. It’s often located near the refrigerant lines.

Step 3: Press the Reset Button

Once you locate the reset button, press and hold it for a few seconds, then release. This action should reset the unit. In some models, you might hear a click sound when pressing the button, indicating that the reset is complete.

Step 4: Replace the Access Panel

After pressing the reset button, replace the access panel on your outdoor unit securely.

Step 5: Turn the Power Back On

Restore power to your air conditioner by turning on the circuit breaker or the power switch at the thermostat.

Step 6: Test Your Air Conditioner

Once the power is back on, check your thermostat to ensure it’s set to your preferred settings. Then, turn on your air conditioner to see if it’s functioning correctly. Give it a few minutes to start cooling.

Troubleshooting Tips

  • Wait for the Compressor: After a reset, the compressor may take a few minutes to start up. This delay is a normal part of the process.
  • Check the Thermostat: Make sure your thermostat is set to the correct mode and temperature.
  • Inspect Air Filters: Clogged or dirty air filters can impede the performance of your air conditioner. Clean or replace them if necessary.
  • Look for Error Codes: Some Carrier models display error codes that can help identify specific issues.

When to Call a HVAC Professional

  • If the air conditioner doesn’t start after pressing the reset button.
  • If the unit continues to experience the same issue or displays an error code.
  • If you are not comfortable performing these steps on your own.

Preventative Maintenance

Regular maintenance is crucial for keeping your Carrier air conditioner running smoothly. This includes cleaning the filters, scheduling annual professional check-ups, and ensuring there are no obstructions around the outdoor unit.


The reset button on a Carrier air conditioner is a useful tool for quickly addressing minor issues. However, if problems persist, or if you’re unsure about any steps in the process, it’s always best to contact a qualified HVAC technician. Regular maintenance will also help prevent issues from arising in the first place, ensuring your unit keeps you cool and comfortable when you need it most.

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