April 19, 2023

Window air conditioner symptoms

When your window air conditioner is running but not cooling, not running at all or leaking water inside the house, you'll need to take action fast. Our symptoms and troubleshooting solutions guide you through the steps to fix any window air conditioner failure. Get the repair parts you need by entering the part number or your air conditioner model number in the search bar. Follow the steps in the window air conditioner repair guides to install replacement parts and get the AC working again.

window air conditioner

Symptoms common to all window air conditioners

Choose a symptom to see related window air conditioner repairs.

April 20, 2023

Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…

April 19, 2023

Main causes: clogged drain hole, air conditioner not leveled properly…

April 19, 2023

Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals …

April 19, 2023

Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…

April 19, 2023

Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…

January 10, 2024

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

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…

Repair difficulty
Time required
 45 minutes or less
How to replace a window air conditioner user interface control board

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…

Repair difficulty
Time required
 30 minutes or less
How to replace a window air conditioner condenser fan

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…

Repair difficulty
Time required
 90 minutes or less

Articles and videos for window air conditioners

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

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

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