How HVAC Refrigerant Pressure Switches Work & Troubleshooting!

I Show How to Read the Cut-In and Cut-Out Pressures of High and Low Limit Refrigerant Pressure Switches used in HVAC. I Show How the Refrigerant Pressure Switches Work and How to Troubleshoot Them by Reading the Refrigerant Gauges and Measuring Resistance with a Multimeter. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.

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Pressure Switch for Fan Control- https://youtu.be/Xqh1KNpZIqQ

Here are some of the Tools I use:
UEI DL479 Multimeter with temp sensor http://amzn.to/2jtsUbJ
Appion Valve Core Removal Tool http://amzn.to/2uYr8WL
Blue Vapor Yellow Jacket Gauge- https://amzn.to/2Ju7pan
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Quick Coupler for the Gauges- https://amzn.to/2sTk8Ze
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JB Test Gauge Low Side- http://amzn.to/2qR0utM
Yellow Jacket Refrigerant Gauge Set http://amzn.to/2aenwTq
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Видео How HVAC Refrigerant Pressure Switches Work & Troubleshooting! канала AC Service Tech LLC