Frigidaire  Window Air Conditioner  Error Codes

These error code explanations can help you diagnose a problem with your Frigidaire window air conditioner. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for window air conditioners, major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. You can also search for owner's manuals and find window air conditioner replacement parts

Check out our window air conditioner error code charts for information on a different Frigidaire model or another brand of window air conditioner.

Error Code Condition Check/Repair Shop Parts
ES Evaporator temperature sensor failure Unplug the air conditioner and check the wire harness connections on the electronic control board to make sure they aren’t loose or damaged. Examine the electronic control board for damage. Check for a pinched or broken wire in the evaporator temperature sensor wire harness. Replace the evaporator temperature sensor if it’s defective.
Evaporator temperature sensor, Wire harness, Electronic control board
AS Air temperature sensor failure Unplug the air conditioner and check the wire harness connections on the electronic control board to make sure they aren’t loose or damaged. Examine the electronic control board for damage. Check for a pinched or broken wire in the air temperature sensor wire harness. Replace the air temperature sensor if it’s defective.
Air temperature sensor, Wire harness, Electronic control board