Subz 550 drain tube keeps freezing up, causing water to spill onto base of fridge and freezing
i know this is late but there's a heater kit made for this 4202160 is part number,you remove the shelves,you can put a mark under the shelf arm on the far outside where the shelves hook on so you can put them back in the same spot,then remove the light cover,the two screws and metal cover and then pull the wall off and set it to the side ,the drain heater kit plugs into the wire harness,the heater will heat up and keep drain from freezing,you can slide the tube off,stick a screw driver in to hold it down to the floor so you don't burn your hand and blow hot air into it with hair dryer to melt out ice,keep heat on for like 20 to 30 seconds then cold air or remove heat you don't want to mess the hose up from overheating wait a bit and hit it again until you melt out the ice,then i use a long plastic wire tie to stick into drain hose to clean it out,some nasty stuff in there,i use a steamer to clean the line out and then i have a piece of 1/4 inch plastic water line to snake into the drain,if this is the first time this has happened you don't need the heater kit,just clean out the tube and metal drain trough,also clean the back of the top crisper drawer shelf,crumbs and stuff can get in between the back wall and the top shelf and then will fall into the drain,if you keep that area clean you won't have to many issues and keep the fridge a little warmer so it doesn't freeze up the water in the drain tube,put the drain tube back onto the trough and pour hot water into it,if it drains down you're done if it's still blocked get a turkey baster and push hot water down into the drain tube to clear it,if it still doesn't clear remove the bottom kick panel,you'll see the drain pan and look at it because you have to get it back the same way in the clips then you can see the drain tube,stick a plastic tie up in there to clean it,sometimes there could be dust or something in the drain pan,when the water hits it it can get into the bottom of tube and block it but i've only had to do that once,hope this helps you out.
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