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'93 940 AC-No cool afte recharge 900 1993

posted by  Marlin Mangels on  Mon Jul 19 00:42 CST 2010
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last visit: Tue Oct 21 15:41 CST 2014
[RELATED]

I had the ac recharged at a shop and it worked great for a couple of weeks. Now, the compressor cycles about every 10 seconds at 87 degrees F and doesn't cool. I attached a small gauge that comes with a refill kit and the pressures are cycling between 45 and 25. From what I read, this is normal cycling pressures. I checked the heater coil and the shutoff is completely retracted, which I believe is closed. What should I check next?
Marlin

Edit: I also used air and water to clean the condenser and the fan comes on with the compressor.






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