Jim-Poncin wrote:

I came across a website that said a test for whether your a/c is working
properly is if the air coming out of your register is 15 or more degrees
cooler than the outside air T (going into the a/c).
Is that a good criterion? thanks


NO! That is non sense!

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Crank Your Air-Conditioner Up To Specs
http://www.udarrell.com/air-conditio...city-seer.html