Replaced a unit this morn that had numerous issues. Broken captube at distributer assembly, no lo pressure switch, so the unit ran dry forever. Surprisingly compressor still ran, but didn't pump anymore. TXV was replaced once before, compressor was replaced once (evidence is solder joints and replacement wiring harness sloppily laying in bottom) , reversing valve was replaced once. Upon showing up, you could see the compressor oil on the bottom side of the unit. Also notice the bulb missing on the TXV! Someone soldered the tube closed and put it back under the clamp!!! Also notice the dirty coil!