Marine Refrigeration Troubleshooting

Most boat refrigeration systems have a sight glass for monitoring basic performance.
Marine refrigeration troubleshooting. It s been known to paralyze cruisers for weeks on end trapping them in exotic ports while they lay in wait for that rare elusive creature known as a marine refrigeration technician. We offer classes educating operators to best run and maintain their refrigeration. When your boat s refrigeration isn t working correctly how many of you go to the. Expansion valve may be blocked at the strainer.
Leakage of refrigerant at the shaft seal flange couplings valve gland etc. Learn about eight most common problems that are seen in ship s refrigerated system. That means it would take 1 5 hours to cool that gallon of water if it didn t have to keep the box cool at the same time. Four steps to the 12v refrigeration troubleshooting on board your boat or rv.
If the refrigeration system sounds normal clicks hums and compressor noises but the cold box is not cooling check the sight glass. Marine refrigeration for commercial fishing vessels is our speciality. A danfoss bd 35 compressor the marine refrigeration industry standard along with the larger bd 50 at high speed can remove 248 btu s per hour at 90 degree ambient temps and with a 0 degree evaporator temp common in fridges. We re living in a diy world with the internet and answers close at hand.
I suffered it myself for a short time last summer after i accidentally discharged the refrigerant from the new fridge unit i had installed. From initial start up the sight glass should clear within a few minutes. Partial blockage of refrigerant at the filter or drier or evaporator may cause undercharging.