Quote:
Originally Posted by GtoFM
A/C is designed for indoor temps 15* lower than outdoor temps. So if it's 90* outside and your house is 75*, you're doing good. Humidity control is key. A/C may run 10 times per hour to control humidity. You may be comfortable at 78*/40%RH but miserable at 72*/60%RH. The air coming out of the registers should be 15-20* lower than the temperature at your thermostat.
The outdoor unit may need washed, but be careful not to flatten the fins, that will compound the problem. And, yes ck/change the filter.
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I'm pretty close to those numbers. Had the "AC" man come out yesterday and top off the system, it didn't take much. Register temp dropped 1-2 degrees.
My unit is 26 years old with obsolete/discontinued freon. He had some.
I timed it, 10-12 minutes on. 10-12 minutes off. 88 outside.
91 today. Stay cool.
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