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Old 10-16-2018, 07:09 PM   #1
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Dash air power mystery

2011 Georgetown 300 dash air, the compressor will not run. I checked the refrigerant and it appears to have an gauge reading of 90 lbs on both sides. So it appears to have enough to get it going. I tried to check for power at the compressor plug (not fun) but never got any. Does anyone have a wiring diagram or know of a fuse location?
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Old 10-16-2018, 08:18 PM   #2
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Quote:
Originally Posted by Dixie Mopars View Post
2011 Georgetown 300 dash air, the compressor will not run. I checked the refrigerant and it appears to have an gauge reading of 90 lbs on both sides. So it appears to have enough to get it going. I tried to check for power at the compressor plug (not fun) but never got any. Does anyone have a wiring diagram or know of a fuse location?
You need to check at the pressure switch both high and low side. You would be looking for continuity across both switches, or check for 12 volts across the switches when the A/C us turned on with the ignition on.
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Old 10-17-2018, 01:14 PM   #3
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Thanks Chuckdsp. I will look at the switches soon. The system was intermittent until it just stopped.
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Old 10-18-2018, 07:52 PM   #4
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I found that the a/c compressor clutch has a relay that was not working. It was relay R12 located in the power distribution box above the air filter box. All is well. $14 at NAPA.
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