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Old 06-23-2002, 08:23 PM
John Plut John Plut is offline
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Join Date: Apr 2001
Location: Joliet Illinois
Posts: 309
Low Pressure Switch

My compressor is not coming on at all and I'm trying to troubleshoot the problem. At the low pressure switch, I get 12v at on side and 0v at the other (the switch is open). Does the switch need to be closed for the compressor to run? If so, is a low refrigerant charge a possiblity or is the pressure switch bad?

My initial thought was that even with a low charge, the compressor should come on and if the pressure is too low, it will shut off.

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