Ac Compressor Not Working Troubleshooting

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Hello MonsterWoodshop readers! Are you tired of sweating through the hot summer days? Is your air conditioner not working properly, leaving your home feeling like a sauna? Don’t worry, we’re here to help. In this article, we will guide you through the troubleshooting process of your AC compressor.


The AC compressor is a vital component of your home’s cooling system. It is responsible for compressing and circulating the refrigerant, which cools the air in your home. When the compressor is not working, your AC system will fail to produce cold air.

There are many reasons why your AC compressor may have stopped working. Some of the common causes include low refrigerant levels, faulty electrical connections, and even a malfunctioning thermostat. Before calling a professional, there are some troubleshooting steps you can take yourself.

Step 1: Check the Thermostat

The first step in troubleshooting your AC compressor is to check the thermostat. Make sure your thermostat is set correctly, and that it is on the right setting for the season. If your thermostat is working properly, move on to the next step.

🔍 Tip: Make sure the thermostat is switched to ‘cool’ mode.

Step 2: Check the Air Filter

A dirty or clogged air filter can cause your AC compressor to stop working. This can happen if the air filter is too dirty or if it hasn’t been changed in a while. Check your air filter and replace it if it looks dirty or clogged.

🔍 Tip: Clean or replace your air filter every 30-60 days.

Step 3: Check the Circuit Breaker

If your circuit breaker has tripped, it can cause your AC compressor to stop working. Check your circuit breaker panel and reset any tripped breakers. If your breaker keeps tripping, you may have a bigger electrical issue and should contact a professional.

🔍 Tip: Look for any other appliances that may be on the same circuit as your AC compressor.

Step 4: Check the Outdoor Unit

Your AC compressor is located in the outdoor unit, so it’s important to check it for any issues. Check the unit for any obstructions, such as debris or plants. Make sure the unit is clean and free of any dirt or grime.

🔍 Tip: Keep a clear space around the outdoor unit to allow for proper air flow.

Step 5: Check the Refrigerant Levels

Low refrigerant levels can cause your AC compressor to stop working. While this is not an issue you can easily fix yourself, it’s important to check the levels and contact a professional if they are low.

🔍 Tip: Have your refrigerant levels checked regularly by a professional.

Step 6: Look for Leaks

Leaks in your AC system can also cause your compressor to stop working. Look for any signs of leaking refrigerant, such as oily spots or a hissing sound. If you suspect a leak, contact a professional to fix it.

🔍 Tip: Regular maintenance can prevent leaks from occurring.

Step 7: Call a Professional

If you have tried all of the above steps and your AC compressor is still not working, it’s time to call a professional. An HVAC technician can diagnose the issue and recommend the best course of action.

🔍 Tip: Look for a certified and experienced HVAC technician for the best results.

Strengths and Weaknesses of AC Compressor Troubleshooting

AC compressor troubleshooting can be a cost-effective way to fix your AC system. It allows you to identify and fix common issues on your own, without having to call a professional. However, there are also some drawbacks to troubleshooting on your own.

One strength of AC compressor troubleshooting is that it can save you time and money. Many common issues can be fixed with simple solutions, such as replacing the air filter or resetting the circuit breaker. By troubleshooting these issues on your own, you can avoid paying for a professional service call.

Another benefit of AC compressor troubleshooting is that it allows you to better understand your AC system. By learning how to troubleshoot common issues, you can become more familiar with the components of your AC system and how they work together. This can help you identify issues more quickly in the future.

Despite the benefits of AC compressor troubleshooting, there are also some weaknesses to consider. If you are not experienced in working with HVAC systems, it can be dangerous to perform certain troubleshooting steps, such as checking the refrigerant levels or electrical connections. Additionally, some issues may require professional equipment and expertise to properly diagnose and repair.

AC Compressor Troubleshooting Table

Problem Cause Solution
No cool air Low refrigerant levels Contact a professional to recharge refrigerant levels
No cool air Dirty air filter Clean or replace air filter
No power Tripped circuit breaker Reset the circuit breaker
No power Faulty electrical connection Contact a professional to repair the connection
No power Faulty thermostat Contact a professional to replace the thermostat
Loud noises Loose or damaged parts Contact a professional to repair or replace parts

Frequently Asked Questions

1. What causes an AC compressor to stop working?

There are many possible causes, such as low refrigerant levels, a dirty air filter, or a malfunctioning thermostat.

2. Can I fix my AC compressor myself?

Some troubleshooting steps can be performed by homeowners, but others may require professional expertise.

3. How often should I have my AC system serviced?

A professional should service your AC system at least once a year.

4. What can I do to prevent issues with my AC compressor?

Regular maintenance, such as cleaning the air filter and keeping the outdoor unit clear of debris, can help prevent issues from occurring.

5. How much does it cost to repair an AC compressor?

The cost of repairs can vary depending on the issue and the HVAC company you work with.

6. How long do AC compressors last?

With proper maintenance, AC compressors can last up to 10 years.

7. Can a faulty AC compressor cause other issues with my AC system?

Yes, a faulty AC compressor can cause other parts of your AC system to malfunction.


Don’t let a malfunctioning AC compressor leave you sweating through the summer months. By following these troubleshooting steps, you can identify and fix common issues on your own. However, if you’re not comfortable working with your AC system or if the issue persists, don’t hesitate to call a professional. Remember to keep up with regular maintenance and servicing to prevent issues from occurring in the first place. Stay cool, MonsterWoodshop readers!

Disclaimer: The information in this article is not intended to be a substitute for professional advice. Always consult a certified HVAC technician for proper diagnosis and repairs.

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