Automotive Air Conditioning Repair Information
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Automotive Air Conditioning Repair Information

typical air conditioning circuit, refrigeration circuit

Air Conditioning Repair Topics:

A/C Frequently Asked Questions

Air Conditioning Inspection Checklist

Air Conditioning Self-Test Quiz (Download or Print PDF file)

A/C Cooling Problem: Blows Warm Air Only No Cool Air

Troubleshooting Air Conditioning Problems

Troubleshoot Automatic Climate Control

Troubleshooting A/C Cooling Problems with Temperature

Cooling Fan (electric)

Cooling Fan Relay Problems

How To Recharge Your Car's Air Conditioner

Refrigerant Contamination

Flammable Refrigerants

Alternative Refrigerants for R-12

Future Alternative Refrigerants That May Replace R-134a


California proposes ban on R134a sales to motorists

Information about Retrofitting older vehicles with R-12 A/C systems to R-134a

Air Conditioning Service Best Practices (Procedures a repair shop should follow when servicing your A/C system)

MACS Recommended A/C Service Procedures (PDF file).

A/C Compressor Failures

A/C Condenser Flushing

Compressor PAG Oil Application Chart

Additional Offsite Technical Resources:

4Seasons A/C Technical Bulletins (Click on "Digital Resources")

Mobile Air Conditioning Society (MACS)