Freezer compartment drain trough misaligned, so hole at bottom of trough and the tube drain hose don't line up. Kenmore side by side refrigerator model 253.5567440N

Yrur model number is missing the last three digits.... I will use FRT21H8CB1 as the example model number.
You need to do a total manual defrost with a catch basin and comprtment drain cleaning.
- Unplug the unit
- Remove fgreezer contents
- Direct an exteranl fan into the freezer compartment for just over 2 hours to ensure the compartment drain tube has defrosted.
- During the defrost period... open the fiberboard panel on the lower back of the refrigerator and clean out everything, Condensor coils, catch / drip pan (Called pan-defrost for parts), and the END of the compartment drain tube.
Model reference:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5158190&diagram_id=1311449#d1311449

Defrost pan Item 26 of above link needs to be cleaned.
Coils Item 1 need to be cleaned
Fan blade Item 61 needs to be cleaned.

The evaporator trough, drain item 17 also should be clear. Here is what you can do without tearing everything in the back of the freezer apart. Once your sure the comprtment drain tube (no item number / bulk hose) is clean on the end. Use the exhaust of a Vacuum cleaner and the hose to force air UP through the drain hose and float out any debris from the trough drain. Have a 2nd person listen for air flow into the freezer compartment if possible. The biggest problems with freezer compartment drains is the END of the hose at the defrost pan underneath the unit clogs up and then the compartment drain hose just loads up with scum. Then the freezer stops draining and you have the symtom your describing.

After the manual defrost and cleaning return the unit to normal service.

Having said all of that... if the refrigerator then freezer starts warming up in 3 - 4 days... you may have an automatic defrost problem causing the icing. I.e it is not defrosting so the evaporator eventually ices over and forms an ice block in the back and bottom of the freezer compartment. Usually if there is an ice block that forms you wil hear the evaporator fan striking the ice build up.
If this is happening... for sure there is an automatic defrosting problem and your stuck doing a manual defrost ever 3 - 4 days until repairs are complete.

One more note.. if there is NOT any compartment drain tubing visible... your unit may port evaporator tray water down the back of the fresh food compartment to the defrost pan under the unit... just clean everything that serves as a drain function best you can during the manual defrost and cleaning process.

Thanks for choosing FixYa,
Kelly

Your problem more than likely is a plugged defrost line in the freezer...The freezer goes through periodic defrost cyles to keep the coils from freezing up. The water catches in a trough pan in the freezer and flows through a drain hole to the bottom of the fridge where it evaporates. This drain hole perodically freezes up and the water accomulates under the freezer bottom until the water level reaches your vent ports to the fridge section. Open your freezer and on the bottom floor of your freezer you should see two screws near the front on either side. Remove them and then take out the bottom tray....this will expose the drain hole near the rear of the freezer compartment. You will more than likely have to remove ice under the tray in order to see the drain hole. Remove the lower back panel on the back of the refrigerator and you should be able to see the drain line coming from the freezer. Unplug the refrigerator before you begin work. It will take a little while for the drain line to thaw to allow liquid to flow to the bottom. I find a hair dryer pretty handy in speeding up the process. To verify you have unplugged the drain line you should be able to pour hot water in the drain hole in the freezer and see it come out at the rear of the fridge in tube line just above a little catch pan

If you remove all the ice from the freezer floor, pull the bottom bin out and look at the freezer wall there should be a trough with the drain in it. If you can't see the trough you'll need to take all the shelfs out and remove the back panel from the frezer. Once you do that you'll see an aluminum evaporator coil and below that you'll be able to see the trough and the drain hole. Remove the ice from the trough, located the drain hole and using a hair dryer, hot water, or a screw driver, clear the ice from the drain. If you use a screw driver be careful not to knock a hole in the line. Once water can flow freely down the drain your done.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

The problem is the drain is clogged. Remove the back panel in your freezer and at the bottom of the evaporator coil you will see a hole about ½” in diameter this is the drain tube. You might need to use some warm water to melt the ice and then run a wire being very careful not to puncture the hose and run it down the tube to free up the drain. This tube travel down to the bottom of your refrigerator to a pan sometimes located on top of the compressor or somewhere else down there. It collects the water there to evaporate. You can enter your model # at www.appliancehelponline.com for a diagram or illustration of your refrigerator. Not all models are available.

Remove the bottom freezer crisper , and at the bottom of the panel ( it looks like you have a drain trough cover which has to be removed ) , if its not frozen over with ice , youll see a drain hole . Use a hair dryer to defrost the drain until you see the hole . Then continue defrosting the hole until water will flow thru it . Sometimes , hot water helps to thaw the drain . When thawed , use a small hose inserted into the drain , and blow thru it , to clear out any debris in the line .

follow the floor to back and you will find a trough with a hole in the center..it's clogged..a semi stiff wire or I use flexible tubing and run it down the hole to clear blockage..run hot water down it to check it is clear.

Open the freezer door, remove the bottom tray, smash the ice on the floor with your fist to remove it. Now get a glass of hot water and pour it into the trough which is at the bottom of the back wall of the freezer. Allow a few minutes for the ice to melt then remove it with an ice pick or scrrewdriver. Once the ice is out, pour more hot water into the trough. Now take a long tube ( an old washer fill hose works perfectly) and stick one end in the hole in the trough. Now fill your mouth with warm water and blow it very hard through the tube. Once the drain is clear, pour some hot water and a very little amount of bleach through the hole.

Check the ice maker. sometimes they get cracked a will leak water into the freezer compartment. Also check the ice maker fill tube for leaks or someone could have spilled something. Although this is tipical of a clogged drain. What happens is when the fridge go into derfost, it will melt all the frost that is on the evaporator, turning it into water. The water drains down to a trough under the evaporator and down a drain hole in the trough ( this trough is behind the evaporator cover ) Removing the melted frost from the freezer. If that drain is clogged, the water cannot leave the freezer. Then when the fridge starts back up ,it will freez the water that was not drained. After repeated defrosting the water will fill this trough and run off into the bottom of the freezer to be frozzen when the fridge starts to cool again.

It sounds like you have a plugged defrost drain line. This is where the water goes to in the bottom of your freezer when it goes through the defrost (removal of ice from the freezer coil) cycle. It sounds like that hole is plugged and now the water/ice has now frozen in the vent that lets air circulate down into your refrigerator compartment. What I usually do in this case is to unplug the refrigerator, empty out the freezer compartment. Usually I also end up either pulling off the back panel or the bottom panel (in the freezer compartment) Looking for that defrost drain hole and thawing it out with a heat gun (be careful of melting plastic) or actually I use a hair dryer. I can sometimes do this also by pouring small amounts of HOT tap water onto it and then sopping/absorbing it away with a sponge or dishcloth. I repeat this until I get the water to go down the drain tube

unplug it again , sounds like your drain line has frozen, instaead of defrost water going down the tube and under refrig in drain pan, becuse tube is frozen its draining into freezer compartment and eventually spilling out through front of unit. totally defrost unit and behind back wall of freezer youll see a metal trough designed to catch water, in the center (under the ice is gonna be the drain hole, pour boiling water down until it runs freely