Refrigeration issues

[VisionPNW]

On my 1990 Vision 32, I have a Danfoss BD2.5 compressor running R12 with some cooling issues. The compressor runs, I get a little frost on the line leading into the evaporator, but no frost forming on the evaporator and no noticeable change in temp in the box. Any ideas on what I could do? (Other than calling a tech and dropping another boat buck on the issue!) I've done some research (kollmann-marine.com) but this topic seems a little more involved than other boat systems.
Thanks, Jim

 

[Ken Cross]

Look for kinks in the lines or other obvious faults between the compressor and the evaporator.

Ken

 

[Stu Jackson]

If, as you've said, you've read Kollmann, you will recall that 99% of al refrigeration problems are ELECTRICAL.

I also had a module issue with my 1986 system. Rparts has the new module for me in 2016.

Happy troubleshooting.

 

[Rich Stidger]

Send an email to Richard Kollmann. He has been very responsive to individual questions. He may be able from your description and symptoms to tell you the most likely fault.

 

[VisionPNW]

As a quick update, I contacted Richard Kollmann and he recommend I add 4oz of freon to the system. After a little Craigslist hunting I found a hose fitting and a can of R12. Added the freon and it works like a champ now! I've heard that the systems don't like sitting without being used for long periods and they are more prone to small leaks. I suspect this is what happened to my system.

 

[capta]

We got so tired of wasting money on totally ignorant, parts changing refer techs that we bought a set of gauges and do all but the vacuuming and soldering ourselves. These systems are dead easy, once you have the gauges, some gas and a bit of dish soap. Bet we could set up shop anywhere and make a damn good living just being honest and reasonably priced.