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Old 08-02-2003, 08:58 AM
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engatwork engatwork is offline
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,878
including, for some reason, defrost
To defrost the windshield you have to dehumidify the air too. The compressor is designed to come on when the defrost button is pressed.

Is the compressor clutch pulling in when you "jumper" the pressure switch?
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