Could it be INSIDE the hose?
As you know, when refrigerant flow is restricted, there will be a change in pressure and therefore a change in temperature. Another great use-case for the thermal imaging camera. Thermal imaging will allow you to pinpoint an issue within the hose BEFORE you unnecessarily replace a compressor or condenser.
Another great tip is to simply listen...
This delaminated hose made it into the compressor! Read More.
Want to get serious about problem solving? Learn more about the thermal imaging camera.
Need efficient hose repair systems? Take a look at the kits available online with Highgate Air.