Company: Refrigeration Training Services

Product: RefTech Diagnostic App

Description: This app is derived from the proven troubleshooting charts in Refrigeration Training Services’ HVACR instructor CDs and book, “Commercial Refrigeration for Air Conditioning Technicians.” The app diagnoses and suggests repairs for the 12 most likely commercial refrigeration problems. Simply enter the equipment type; refrigerant; gauge pressures; and line, box, and ambient temperatures.

Contact: 703-830-6004;;

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