DIY air compressor repair

An air compressor is a handy DIY tool when it's working correctly. When that doesn't happen—maybe the tank won't hold air, the pressure gauge isn't working or the safety valve keeps popping open—Sears PartsDirect has the troubleshooting guidance to get your air compressor back in good working condition.

Match the problem you're having with your air compressor with a symptom below to see the most common repair. Once you determine the problem, use the instructions in our step-by-step air compressor repair guides to replace the broken part.

Our repair tips work for basic Craftsman air compressor troubleshooting. You can also use this Craftsman air compressor repair advice to troubleshoot many other brands of air compressors such as Campbell-Hausfeld, DeWalt, Porter-Cable and Ingersoll Rand. For advice on how to maintain different types of air compressors or tips on the unseen dangers of the power tool, check out our articles and videos page.

Search using your model number to find the owner’s manual or a complete list of replacement parts for your air compressor.

Air Compressors

Symptoms common to all air compressors

Choose a symptom to see related air compressor repairs.

Main causes: lack of electrical power, check valve failure, bad pressure switch
Main causes: loose air tube fitting connections, bad check valve, faulty safety valve, damaged or corroded air tank, bad air pump
Main cause: bad air tank pressure gauge
Main cause: faulty output air pressure regulator
Main causes: bad safety valve, pressure switch failure
Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve plate
Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain valve

Repair guides common to all air compressors

These step-by-step repair guides will help you safely fix what’s broken on your air compressor.

How to replace an air compressor check valve

You can replace a defective air compressor check valve in about 10 minutes.

Repair difficulty
Time required
 15 minutes or less
How to replace an air compressor pressure switch

You can replace a broken air compressor pressure switch in about 45 minutes.

Repair difficulty
Time required
 45 minutes or less
May 1, 2015
By Lyle Weischwill
How to rebuild an air compressor pump

If the air compressor won't fill the tank with compressed air, rebuild the pump using these steps in about 45 minutes.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all air compressors

Use the advice and tips in these articles and videos to get the most out of your air compressor.

May 1, 2015

Air compressor common questions

By Sears PartsDirect staff

These answers to common questions can help you make the most of your air compressor.

April 24, 2015

How to reduce air compressor noise

By Sears PartsDirect staff

Find out how to reduce air compressor noise.

April 22, 2015

The unseen dangers of air compressors

By Sears PartsDirect staff

Learn about the possible dangers associated with using an air compressor and how you can reduce the risks of property damage and personal injury.