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Old 09-01-2012, 04:26 PM
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LATECH LATECH is offline
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White is the largest of tubes available at .072" inches.
The problem is most likely at the rear expansion valve. It is probably blocked or plugged, or is defective and is closed off, not letting freon pass, causing high side readings to be high, and low side to be low, and everything inbetween.
I would have to suggest opening up the rear at the expansion valve , both lines, and flush the lines, and replace the valve or orifice at the rear.
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