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Old 08-12-2010, 12:51 PM
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whunter whunter is offline
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Location: Metro Detroit, Michigan
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Why AC Compressors Fail

New owners/members.

AC Compressors diagnosis
http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us&tbs=vid%3A1&q=AC+Compressors+diagnosis&btnG=Search&aq=f&aqi=&aql=&oq=&gs_rfai=

Why AC Compressors Fail
http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us&tbs=vid%3A1&q=Why+AC+Compressors+Fail&btnG=Search&aq=f&aqi=&aql=&oq=&gs_rfai=

AC Compressors Failure
http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us&tbs=vid%3A1&q=AC+Compressors+Failur&btnG=Search&aq=f&aqi=&aql=&oq=&gs_rfai=



Compressor Failure Analysis
http://www.airsept.com/Articles/CompressorGuard/CompressorFailureAnalysis.pdf


Air Conditioner Compressor Failures
http://www.ryderfleetproducts.com/cgi-bin/ryderfp/technicalbulletins/accompfail.jsp

Diagnosing and Fixing A/C Compressor Failures
http://www.aa1car.com/library/2004/us50414.htm

Air Conditioner Compressor Failure
http://www.aa1car.com/library/2003/ic50350.htm

IDENTIFYING FAILURE MODES
http://www.brainerdcompressor.com/_pdf_files/Failure2.PDF

Compressor Failure Modes, Symptoms and Corrections
http://www.nationalcompressor.com/compressor.html

Compressor Failure Reasons
http://www.e-refrigeration.com/index.php?page=compressor-failure-reasons

Reciprocating Refrigeration Compressor Failure Diagnostics
http://www.fridgetech.com/articles/recipfailmodes/


Liquid Slugging:

This is a result of trying to compress liquid in the cylinders.
That liquid may be either refrigerant or oil or more likely a combination of both.
In the case of air-cooled compressor, any liquid being returned to the compressor comes directly into the cylinders.
On a suction-cooled compressor, slugging is a result primarily of refrigerant migration into the oil on the off cycle.
Upon start up the lowering of crankcase pressure causes a violent explosion that carries quantities of refrigerant and oil into the cylinders.

The results in either case are:

#1. Blown gaskets - head or valve plate gaskets
#2. Broken reeds - either or both
#3. Loose discharge valve bolts - stretching or stripping threads
#4. Broken rod or crankshaft - depending on the quantity of liquid in cylinders



Have a great day.

Last edited by whunter; 08-12-2010 at 01:07 PM.
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