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Air Conditioner

(1990 Volvo 740)
in Marana, AZ on June 22, 2010
My air conditioner was cycling so we added freon and it was better, but the vents in the center of the car were blowing hot and the side vents were blowing cool air. We found that a vac tube was kinked so we fixed it. Now when we turn on the air the compressor does not come on. We checked the fuses and all were ok but there seems that there is no power to the compressor. We don't know if there is another fuse somewhere. Can we energize the compressor with a wire from the battery or? Any suggestions? Mike
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Popular Answer
on June 22, 2010
Mike,
Check the low pressure switch on the accumulator. See if it has power to the connector, then jump the connector if it does, then the compressor should engage. If your not getting power to the switch then fault trace that circuit back to the control head.
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