Air Conditioner Compressor Not Turning on: Troubleshooting Guide


If your air conditioner compressor is not turning on, check for a tripped circuit breaker or a faulty capacitor. A malfunctioning air conditioner compressor can be a major inconvenience, especially during hot summer months.

When your AC compressor fails to turn on, it could be due to a variety of issues, from simple problems like a tripped circuit breaker or a faulty thermostat to more complex issues like a faulty capacitor or compressor motor.

Addressing these problems promptly and efficiently is crucial to maintaining a comfortable indoor environment. In this guide, we’ll delve into common causes of AC compressor failure and provide practical solutions to troubleshoot and resolve the issue. Keep reading to discover why your air conditioner compressor might not turn on and how to effectively address the problem.

Air Conditioner Compressor Not Turning on: Troubleshooting Guide


Common Causes Of Ac Compressor Not Turning On

There are several common causes when the air conditioner compressor does not turn on. A tripped circuit breaker can prevent the compressor from turning on. Additionally, a faulty compressor motor or a defective capacitor could also be the culprits. Checking the thermostat settings, inspecting the breaker, and ensuring the capacitor and motor are functioning properly are essential troubleshooting steps to resolve the issue.

Troubleshooting Steps For Ac Compressor

When troubleshooting an AC compressor that is not turning on, there are several steps you can take to identify and resolve the issue. First, check the thermostat settings to ensure that it is set to the ‘cool’ setting and the temperature is below the current room temperature. Next, inspect the circuit breaker to see if it has tripped, as this could prevent the compressor from turning on. If the breaker is fine, you may need to reset the compressor unit by locating the reset button attached to the unit. If the issue persists, it is important to examine the compressor wires for any signs of damage or loose connections. These troubleshooting steps can help you determine the cause of the problem and take appropriate action to get your AC compressor working again.

Professional Maintenance And Repair


Air Conditioner Compressor Not Turning on
Professional Maintenance and Repair
Calling HVAC Technician
If your air conditioner compressor is not turning on, it could be due to various reasons. Calling a professional HVAC technician is essential to diagnose the issue accurately and ensure proper repair. Some common reasons for a non-functioning compressor include a tripped circuit breaker, faulty capacitor, or compressor motor issues. Proper troubleshooting may involve checking the thermostat settings and breaker, as well as resetting the air conditioner compressor. The HVAC technician can also assess the need for repairing or replacing components such as the capacitor, relay, or compressor itself. Seeking professional maintenance ensures efficient resolution of the compressor malfunction, allowing your air conditioner to function effectively.


If you’re facing an air conditioner compressor that won’t turn on, don’t fret. With the troubleshooting tips and potential solutions mentioned, you can diagnose and resolve the issue swiftly. From checking the thermostat to examining the capacitor, identifying the root cause is the key to getting your AC up and running efficiently again.



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