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Old 04-22-2003, 09:30 AM
Posts: n/a
A restriction will cause the low side to go down, even to a vacuum. This is an expansion valve system, no o-tube.

Since it has emptied, are you sure that there is no air in the system? You may need to evacuate thoroughly and recharge. But, for now, you have some dye in the system, so find your leak, repair your leak then evacuate and charge.

Good luck,
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