How to Replace an Air Conditioner Compressor How to Replace an Air Conditioner Compressor

What You'll Need
Replacement compressor
Tools needed to remove your model (usually just screwdrivers)
Soldering gun
Silver solder

If you have noticed that you have been having issues with your air conditioner, it may be time to replace your air conditioner compressor. Oftentimes these parts will burn out from overuse and will have to be swapped out for new ones. The process of replacement is not that complicated if you have the right guide to follow. Consider the steps below during your replacement.

Step 1 - Check the Compressor

Test the compressor o see if it even needs replacement, If it works fine, you might have a totally different piece to worry about.

Step 2 - Get the Right Replacement

Check the make and model on the compressor so you can purchase the exact replacement. Most of the time, compressors aren't easily worked into other air conditioning units, so you want to be sure that you get the right one. If you cannot find one to purchase in a store or online, call the manufacturer directly.

Some newer models of replacement compressors may also require you to replace other components of the air conditioner for everything to work properly. Talk to your manufacturer about any additional replacements that may be needed, such as the coils or thermal expansion valves.

Step 3 - Stop the Power

Turn off the air conditioner and its power supply. You don't want any electrical risks to occur while you are in the middle of replacement.

Step 4 - Remove the Refrigerant

Remove the refrigerant from your unit and put it in a container for disposal. Nowadays, it is required by law that you properly dispose of this liquid, rather than just letting it drain onto the ground. This helps cut back on pollution.

Step 5 - Remove the Old Compressor

Refer to your user's manual to see how to remove the old air conditioner compressor. Every model is a bit different. At this time, also cut the refrigerant lines.

Step 6 - Install the New Compressor

Put the new compressor in following the exact steps you did for removal, only in reverse. Use silver soldering to connect the old refrigerant lines with the new ones.

Step 7 - Vacuum out the Unit

Use a vacuum to get all the air and water out of he refrigerant lines. Any water that gets into the new refrigerant could be harmful to the unit. Air contamination can be just as detrimental, so make sure you properly remove all contaminants from the hoses.

Step 8 - Replace the Refrigerant

Add refrigerant back to the system with the right charge added to it. This charge will need to be precise because there are issues with under charging and over charging the refrigerant. Make sure to maintain the right temperature, volume and pressure during this step of the project.

Step 9 - Restart and Test

Once everything has been hooked up again, turn the power back on and see if the unit works properly.


Got a New Project You're Proud of?

Post it on Your Projects!