True Bar Refrigerator

I’ve got a TDD-3 bar refrigerator that isn’t cooling. I wanted to test the compressor to see if the was refrigerant was low but it seems that this model doesn’t have a service port. It’s a “closed capillary system”. Obviously call a professional but am I just blind and not seeing the service port? Is it common to just not have one? Thanks. submitted by /u/Puzzleheaded-Week509 [link] [comments]