Thanks for the information. As I stare at it more, I'm beginning to think that the crystals I'm seeing are actually from the material inside the holding plate leaking out and crystallizing? I suspect this calls for a new holding plate?
We had a visit today from the refrigeration
tech recommended by the marina where we are slipped. Here's the outcome:
He was able to get the freezer unit (evaporator plate) running again. He added some refrigerant to the system. Although too much, apparently. After bleeding some out we got normal running of the freezer system.
After being unable to get the refrigerator system running despite topping off refrigerant he vacuumed the refrigerator circuit, refilled with r134a, and then tried again. Same problem. Essentially, the compressor runs for a little, then eventually slows down and stops. While doing this it shows 4 green LED blinks. The manual provided by TempTech (the thermostat provider) doesn't offer any information as to what 4 green blinks might mean. 4 red would be overload, compressor not able to maintain 1850 RPM
, which does sort of sound like what's happening...
Thanks for any insights..