Refrigerant Problem Diagnostic Chart

Refrig Problem Charging Chart

 You can vastly improve your refrigerant troubleshooting skills by using the refrigeration cycle diagram below to  answering  the question WHY for each of the 48 squares on this chart.  WHY does an Overcharge cause  Head Pressure to be Hi?  WHY does an Overcharge cause  Super-Heat to be Lo?

Refrigerant Cycle

 

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