February 23, 2016

What to check if your air conditioner isn't cooling video

By Sears PartsDirect staff
What to check if your air conditioner isn't cooling.
What to check if your air conditioner isn't cooling.

If your central air conditioner isn't cooling like it should be, there are a few things you can check before calling for service. In this video from Sears PartsDirect, learn why the float switch may have shut down your air-conditioning unit and how you can fix it by removing clogs in the drain pipe. Also, learn how simple monthly maintenance can prevent clogs in the future.

If you're looking for other DIY help for your appliances or lawn and garden equipment, check out our repair help section for symptoms and troubleshooting advice, error codes, repair guides and replacement parts.

Symptoms for window air conditioners

Choose a symptom to see related window air conditioner repairs.

Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor failure
Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure
Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure
Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals
Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor
Main causes: clogged drain hole, air conditioner not leveled properly

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 yourself following these instructions.

Repair difficulty
Time required
 45 minutes or less
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 it.

Repair difficulty
Time required
 30 minutes or less
How to replace a window air conditioner electronic control board

The electronic control board is the brain of your window air conditioner. Here’s how to replace it.

Repair difficulty
Time required
 45 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.

October 26, 2016

How to repair broken or damaged wires video

By Sears PartsDirect staff

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

January 20, 2015

How to fix a smelly room air conditioner

By Sears PartsDirect staff

Learn how to remove and prevent odors in a window air conditioner.

December 22, 2014

Room air conditioner installation and operation tips

By Sears PartsDirect staff

Window air conditioner installation tips.