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.
Symptoms for window air conditioners
Choose a symptom to see related window air conditioner repairs.
Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…
Main causes: clogged drain hole, air conditioner not leveled properly…
Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals …
Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…
Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…
Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor…
Repair guides for window air conditioners
These step-by-step repair guides will help you safely fix what’s broken on your window air conditioner.
How to replace a window air conditioner ambient thermistor
If your window air conditioner isn’t cooling properly, it might need a new ambient thermistor. You can replace it yourse…
How to replace a window air conditioner user interface control board
Control buttons or lights on the user interface control board can stop working. This repair guide shows how to replace i…
How to replace a window air conditioner condenser fan
If the condenser fan blade is broken or the condenser fan motor won’t run, you can replace the broken parts yourself by…
Effective articles & videos to help repair your air handlers
Use the advice and tips in these articles and videos to get the most out of your window air conditioner.
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…