Article: Diagnosing a Sick Air Conditioner; A Checklist of Possible Problems Will Help You Keep Your Cool

It's a sweltering summer day with the temperature and humidity both in the mid-90s. You are indoors, enjoying the cool air and comforted by the continuous hum of your air conditioner in the background. Suddenly the unit starts to groan and you realize the room is getting warmer. A flutter of panic sets in.

You quickly check the lights and the stereo to see if there has been a power failure. There hasn't. A bead of sweat forms on your brow as it sinks in that the air conditioner isn't working and something has to be done.

Panic and frustration won't solve the problem. The next actions you take must be simple and logical.

If you have a room air conditioner, first check to see that the ...

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