I HAVE A KENMORE REFRIGERATOR THAT LEAKS WATER UNDERNEATH EVERY COUPLE OF DAYS. IT DOES NOT HAVE AN ICE MAKER OR WATER DISPENSER. I THINK I NEED TO DO SOMETHING WITH THE BLACK TUBE RUNNING DOWN THE BACK BUT I DONT' KNOW FOR SURE.

Somewhere, the route water is supposed to take during the defrost cycle is clogged, or the drip pan has so much dust the defrost water overflows. Or possibly the end of the drip tube has been knocked out of line and the water doesn't get into the pan. You probably need to at least clean all the dust and dirt from the bottom -- just doing that might solve it.

Your evaporator coils frost up in normal use and every eight hours or so the entire unit shuts down and the defrost heater comes on to melt the frost. This cycle last about 20 minutes. The melted frost drips into a drain pan and through a drain tube to the drain tray under the freezer/refrigerator where it's evaporated by the condenser fan.




Your drain tube may be stopped up with ice at the upper end because it drains too slow because it's stopped up at the lower end in the evaporator pan under the unit at the floor. It can get dust and mold in it. Once you get the ice out at the top a little pressure with a turkey baster will usually clear it out. Flushing it out with hot water and clorox may help.
Make sure it drains quick enough to prevent refreezing. . The drain should be located below the evaporator coils on the lower back of the freezer.