top of page

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.

Most Recent Videos

It Is Not Too Late To Enter The HVAC Industry!
01:49
The HFC Refrigerant Phase Down Explained! Understanding The Future of HVAC!!
02:58
Explaining The Sequence of Operation On A Gas Furnace!!
01:02
HVAC Vacuum Procedure Advice & Tips For New Technicians!
03:00
Teaching The Trades to the Next Generation! Should You Do It?
01:30
The Purpose Of A Combustion Analyzer On A Gas Furnace!
01:17
HVAC Capacitor Diagnosis! Quickly Identify Bad Run Capacitors!!
01:46
Learn To Be Better Than Yesterday In The HVAC/R Trade!!
03:00

AC Service Tech HVAC Training is made possible by continued support from our visitors, customers, and support from these Sponsors!

NAVAC LOGO Black_edited.png
Accutrak Logo
TruTech-Tools-Logo-Main (3)[528].png
HavenRGB-FC w_grey horz.png

AC SERVICE TECH, LLC

Updates List

Thanks for submitting!

Thanks for all your continued support! I appreciate all the comments, questions, and responses that I receive from each of you. I look forward to responding to many more! If you have an HVACR related question, drop it in the comment section of one of the YouTube videos at the AC Service Tech YouTube Channel and I will do my best to respond.

 

For business related inquires email us at info@acservicetech.com

Check back regularly as we are always updating and improving this website!

© 2026 AC Service Tech, LLC.

bottom of page