My boat has a home-style refrigerator (on top) freezer (on bottom). I have not yet figured out the problem, but periodically about a pint of water comes pouring out of the bottom of the unit onto the teak and holly floor. I suspected, and after several cycles am now convinced, that the freezer goes through a defrost cycle during which frost melts and runs into some kind of drain pan. Normally, that works well, but, at least in my suspicion, something somewhere gets clogged with ice and ends up all over the floor.
In the past, I have solved this problem by defrosting the entire freezer. The first time, I used (or at least the tech I hired used) a hair dryer to accelerate the melting part. And the problem was solved for a while. (I suspect that interrupting the power supply, as may happen when I disconnect from shore power, results in the defrost cycle getting out of phase with the evaporate the water in the pan cycle.) But, sooner or later, the problem resurfaces.
So, next time, I am going to take all the food out of the refrig and freezer and put it in some ice chests (in the cockpit). Problem is, the frozen stuff will defrost and will need to be eaten right away. First world problem I can live with.
But, the point of the post, is to hope that someone has a better insight as to the cause and solution to my problem. Anyone?