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Old 07-20-2012, 10:45 AM   #1
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ac running but not cooling my house


My ac stopped cooling my house 2 days ago. I t is blowing low pressure cool air but it is not cold air. Do you think I need freon or something else is wrong? The air is set at 70 but it is reading 80 it is very hot in my house. I need some help.


Last edited by opal16; 07-20-2012 at 10:49 AM. Reason: forgot some info
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Old 07-20-2012, 11:02 AM   #2
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ac running but not cooling my house


First check to make sure you have a clean filter in the indoor unit. Let us know....

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Old 07-20-2012, 11:32 AM   #3
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ac running but not cooling my house


I changed the filter in the furnace if that is the right one.
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Old 07-20-2012, 12:17 PM   #4
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ac running but not cooling my house


Is outside unit running????
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Old 07-20-2012, 12:26 PM   #5
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ac running but not cooling my house


Check to make sure all the air is making it into your home. A line could have come off. I just replaced the blower motor on one of my units and used coil cleaner to finish off the job. Make sure your coils are clean. My 5 ton unit on the roof has never been cleaned. I didn't think it could be dirty being that it is on the roof. Boy was I wrong! Do not use the coil cleaner from HD or Lowes. They don't work like the commercial stuff.
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Old 07-20-2012, 12:43 PM   #6
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ac running but not cooling my house


I checked outside and only the fan is runming does that mean the compressor is bad?
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Old 07-20-2012, 12:47 PM   #7
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ac running but not cooling my house


Could be many reasons its not running,shut the ac off and let it cool down for a few hrs is the first thing a diy can do.
Could be electrical connection/capacitor good be bad/bad contactor/could be really low on freon and compressor is thermally protecting itself/bad compressor..........
Let if cool down then try turning it back on first
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Old 07-20-2012, 12:51 PM   #8
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ac running but not cooling my house


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Originally Posted by opal16 View Post
I checked outside and only the fan is runming does that mean the compressor is bad?
Not necessarily. Could be a capacitor, failed wiring connection to the compressor, compressor internal protector tripping from low refrigerant charge, etc, etc. Might be time to call a good tech out and get it fixed.

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