The outside unit is running and blowing cold air on the outside but not getting cold on the inside what could be the problem
It sounds like you have a unit called a heat pump. When a heat pump unit is in cooling mode the outside unit blows hot air and the inside unit blows cold air. If the outside unit is blowing cold then the indoor unit is most likely blowing room temperature or warm air. It sounds like the thermostat could be controlling incorrectly or you could have a failed reversing valve which is the device that switches the unit from heating to cooling mode.
To add to jacks reply sometimes the compressor can be overheated. turn off and carefully spray some water on the compressor. spraying through the fan guard is ok just try not to spray too much on any wiring. cool for 10 minutes or so and try again. obviously if there's ice this approach will not work and you need service
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The compressor on the outdoor unit probably didn't start. Most people will see the outdoor fan motor running and tell me "the outdoor unit is working". You can try turning the cooling off, waiting 5-10 mins, then trying again. But if the compressor didn't start upon demand, it needs to be serviced. And if the compressor is running and not cooling, turn it off and have it serviced. May be low on freon. Look for ice on the copper lines at outdoor unit. If you see ice, turn it off because it's frozen up. Hope this helps!
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It's funny that the unit is blowing cool air outside but hot air inside—almost like it's working backward. Mine was doing something similar, except now it won't turn on at all. I'm not sure if you've already fixed your problem, but I think I'll call a professional cooling system service to see if they can fix mine. http://www.dandrservicesinc.com/about-us...
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