Thread: A/C Died
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Old 06-13-2011, 01:28 PM   #17
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
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The pressure near equalization when running says that it most likely is more deeply rooted than a foam blockage in the ventilation system. The compressor section is not compressing the Freon and then allowing to expand in the cooling section (the pressure differential between the high and low side). You’re A/C loop has over and under pressure sensors, as well as over temperature sensors; any one of these can stop the system from functioning. You could also have a bad compressor section seal, or a blown expansion valve assembly; either of which would also create this condition.. A malfunctioning dash control unit is also a possible suspect.
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