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Central air stops blowing cold after about 4 hours. The air blows at 63 degrees when it's cold.

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Sounds like your evaporator coil is freezing up. This is a sign that you have a restricted air flow over the evaporator or you're low on freon. The 63 degree tempurature is indicitive of low freon. You should call in an a/c expert to check the freon level and while he's there have him clean the evaporator coil.

Posted on Oct 04, 2010

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