NATE HVAC Exam Prep 46, Heat Pump Service and Defrost Diagnosis
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to diagnose reversing valve internal leakage using temperature differential checks across valve bodies. - The operational differences between time-temperature and demand defrost initiation and termination rules. - How to distinguish normal frost patterns…
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