Refridge and freezer

[dehler25]

I have a 450 and the freezer quit. It seems that the pin valve into the evaporator got plugged as I couldn't get a charge, the evaporator inlet tube frosts up but the evaporator doesn't get cold. It is original and I thought to replace as it also needs a thermostat and fan, given its age of 23 years couldn't expect it to survive a lot longer. Anyone know how thick the insulation used was? Should I add interior insulation? Can't see without tearing up everything around it. I am arguing with myself about an evaporator vs cycling holding plate. Conversion thoughts? Sadly it worked perfect until I shut it down for quite a while. I am looking to move aboard shortly so a freezer matters.

 

[Terry Cox]

Different model boat, but our 1991 units have about four inches of insulating foam around the outside of the boxes. Works pretty well. Also, both the freezer and refrigerator use AB (Dometic) air cooled units that work very well. Had to replace the fridge unit a few years ago as the compressor died. Freezer unit still doing its job.

 

[dehler25]

I have Dometic and an Adler Barbour compressors, the fridge had the holding plate replaced with a VitriFrigo evaporator and it has worked well. The boxes are built in quite well and seeing anything on the outsides would require serious effort with unavoidable damage which is why I asked. If less than four inches I would have considered adding interior insulation as a last resort. I could have the existing freezer unit repaired but almost seems like throwing good money after bad although I may call a refrigeration guy and get an expert opinion.