Checking a system with the wrong sized piston!
20:30
How to Replace a HVAC TXV with Piston
27:04
What a TXV Does (and why techs need to stop replacing them with a piston)
2:54:42
Full video: Genius girl repairs and restores machines.
12:57
R-410A AC Unit Checked with Superheat: 4 Scenarios, Low Charge through Overcharged!
6:03
HVAC 089 fixed orifice piston closer look inside
9:47
Troubleshooting with Superheat and Subcooling (Piston)
11:48
Evaporator Piston To TXV
19:10