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Old 30 Apr 2011, 10:28 am
CREWZIN CREWZIN is offline
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Join Date: Sep 2001
Posts: 27,758
Default Re: Unusual A/C issue

First of all, if the pressure was low (as you read it) why didn't you charge it up and why did you try and test the low pressure (recycling) switch. When the pressure is low, the HIGH pressure switch on the compressor is the one that will stop the compressor from coming on. get the system fully charged up to the normal specs and go from there. Second, if you are low on R134a, you have a leak somewhere. You'll have to find it or you'll just loose the new charge.

Just taking a guess on this part but because the compressor is trying to come on (Your A/C is ON) and the high pressure switch is shutting it down because of the low pressure (R134a) in the system, that may be the surging you experiencing.

Last edited by CREWZIN; 30 Apr 2011 at 10:30 am.
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