I have a slow drip coming from behind the lower right corner of the cover (Item Number: AP4169439) behind the water storage tank that sits behind the storage drawer. Is this an issue that would require the entire assembly to be replaced or just a single part within? I am assuming this must be some kind of condensation issue since it appears there are no water lines running through that area. Thank you for any feedback.
Answer Hello Tod,
This is a stopped up defrost drain. The procedure for this repair is rather tedious as you are having to remove the cover, the Styrofoam insulation, and foil as an assembly which you will find is frozen in place. This makes this job very difficult to accomplish without breaking the Styrofoam.
Here's the procedure. Unplug the unit. Remove the shelves and the plug in the center rail that hides the mounting screw. Remove the screw and the metal shelf rail. Starting at the bottom, work and wiggle the cover until you have enough slack to get the end of a hair dryer into the slot. You may have to hold it there but after 10 or 15 minutes, it should be melted enough to manipulate it around and remove it. Be aware that there are two wiring harnesses that are still attached, so don't break them. They will unplug from underneath a little metal cover that is box shaped. Once you have finally gotten the cover and insulation out, you can start thawing the defrost drain out. Use the hair dryer for this also. I have found that when trying to clear ice from an internal tube like the defrost drain, it speeds it up if you use a metal shaft, like a screwdriver shaft, in the hole. The hair dryer heats the shaft up and transfers the heat better than trying to direct the air into the hole. (DO NOT PUSH AND DAMAGE THE DRAIN AS THIS WILL CAUSE A WATER LEAK INTO THE FLOOR). You will know it's clear when the water standing in the drain disappears down the hole.
When this is completed, it's time to keep the issue from recurring. Using a piece of uninsulated copper wire, (like home wiring, Romex), make a loop to hook over the defrost drain and just make it tight enough that when the heater gets hot, the heat will be transferred to the wire. Hang the wire down to the center of the hole, but DO NOT LET IT CONTACT ANY PLASTIC! Hang it to the center of the hole but you should be able to see the end of it. The end should not be out of sight down in the hole. This would damage the unit beyond repair.
I know this sounds like a "rigging" of the appliance, but this is what the manufacturer tells the technicians in the field to do to prevent the recurrence of the issue.
Also, if the Styrofoam breaks during disassembly, you can use silicone to "glue" it back together. The only stipulation here is, DO NOT REINSTALL THE COVER AND INSULATION ASSEMBLY UNTIL THE SILICONE IS DRIED! You can easily do this but I pity the poor guy that has to remove it next time!