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How To Recharge Your Air Conditioner with Freon


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Clean the Low Pressure Port
Cleaning the port.

Carefully clean the low pressure port.

photo by Matt Wright, 2008
Your air conditioning system has a fragile side. If any debris gets into the compressor it can cause it to fail prematurely, and this can be expensive. To be safe, you should clean the outside of the low pressure port before you remove the cap, and then again after the cap is removed. This may seem like overkill, but one grain of sand can ruin a compressor.

For more info on your AC system, check out How Your AC System Works, you'll be way ahead of the game when it comes to repairs.

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