Um.... Ok just checked. There sure is a build up f ice on the floor of the freezer.
What do you now my man?
We bought a Samsung refrigerator about 15 years ago. It has the freezer as a pull-out drawer at the bottom. When we bought it, I noticed some sort of sensor sticking out a hole in the top of the freezer compartment.
About three years after buying it, we noticed that water on the floor below the unit. Investigating inside, I found that the sensor was gone...the food had apparently piled up high enough, caught it, and ripped it from the freezer when the drawer was opened. Ice was forming at the bottom of the freezer, impeding the drawer's ability to close completely. The ice would get up to an inch thick.
We got a service call...and was told the refrigerator was unrepairable. The sensor had brought out a length of wire with it, and with the other end of the wire buried in the insulation, there was no way to hook up to it again. Refrigerator was out of warranty.
My wife then started manually defrosting the freezer...open the drawer, pull out the siding tray, pull out the main food tray, and pick at the ice. Did this every three months or so.
About the time I retired, we remodeled the kitchen, put in a new refrigerator, and put the old one in the garage to hold beer and pop. Moving from the kitchen to the garage, it came into my domain.
Eventually, I discovered the trick: Percussive defrosting. The liner of the freezer is (slightly) flexible. Ice is NOT flexible, and, in fact, is brittle and doesn't handle localized impacts. So pull out the food trays, reach into the bottom of the freezer compartment with a tack hammer, and whack the ice in the very center of the bottom of the compartment. The ice shatters, and the broken pieces don't stick to the compartment liner. Once the first break is made, it comes out pretty easy. Shove the bergy bits out of the compartment onto the garage floor, then use a broom to shoo it outside.
Only takes about 15 minutes, now.
Ron "Why, yes, I *am* cheap" Wanttaja
