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A/C Compressor 900 1993

posted by  ticktock on  Sun May 22 14:45 CST 2005
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Help!
I have a 93 940 non turbo with 130,000 miles on it. The car is equipped with a manual climate control (MCC) unit. I recently lost ac (compressor will not operate). After troubleshooting the entire system I have discovered that the system is fully charged and the low pressure switch is functional. I can start the compressor and cool the car by jumping the compressor clutch directly from the battery.
The problem I have is that I have 0V (zero volts) at the low pressure switch and approximately 6.5V at the compressor. Both 30 amp fuses check good. After reading the appropriate information on swedishbricks.com, it seems as though my problem may be with the climate control unit (CCU). Possibly a solder joint or relay. Can anyone tell me if this problem sounds like the CCU or some other problem. Thanks for the help.






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