Learn about the different types of contactors on the market for residential home service, and how to test and replace them.
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Performing troubleshooting tests on a frozen system will help you diagnose the problem.
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Learn how to diagnose demand defrost boards on a heat pump.
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Learn how to properly troubleshoot a PSC compressor while in the field.
Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com
