Window air conditioner error codes
Sometimes your window air conditioner tells you exactly what's wrong—as long as you can crack the code. Below are common error code tables for the most popular brands, along with an explanation of what the code means, possible repair parts you might need and DIY advice. Visit Sears PartsDirect’s repair help section for more DIY advice onwindow air conditioners, major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. To find the owner’s manual or a complete list of replacement parts for your window air conditioner, search for your model number.
Most common symptoms to help you fix your air compressors
Choose a symptom to see related air compressor repairs.
Main cause: bad check valve…
Main causes: lack of electrical power, check valve failure, bad pressure switch…
Main causes: tank drain valve open or leaking air, leaky air tank, bad safety valve, worn pump seals, bad pump valve pla…
Main causes: bad safety valve, pressure switch failure…
Main cause: faulty output air pressure regulator…
Main causes: rusted air tank, loose air tube fitting connections, bad check valve, leaky safety valve, bad tank drain va…
Main cause: bad air tank pressure gauge…
Main causes: loose air tube fitting connections, bad check valve, faulty safety valve, damaged or corroded air tank, bad…
Most common repair guides to help fix your 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 pressure switch
You can replace a broken air compressor pressure switch in about 45 minutes. …
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. …
How to replace an air compressor check valve
You can replace a defective air compressor check valve in about 10 minutes.…
Effective articles & videos to help repair your air compressors
Use the advice and tips in these articles and videos to get the most out of your air compressor.
Learn how to tell whether a fuse is blown…
Find out how to reduce air compressor noise.…
See how to perform routine maintenance on your oil-lubricated air compressor.…