I need help removing an ice maker for a Bosch B22ct80sns side by side refrigerator. The ice maker has stopped working (test failed) but I can’t figure out how to remove. It seems as if you have to remove the entire plastic compartment in the freezer! Help please.

SOURCE: Ice maker won't fill

I had this problem with a Kitchenaid and Sears rep advised me to pour some water in the tray. Did and the ice maker started working in about 90 minutes.

SOURCE: Ice Maker problem

Apparently lowering the temperature by 5 degrees in the freezer compartment will keep the input water tube from freezing. It is working fine now!

SOURCE: Ice maker won't make ice. Jenn-Air French Door Refrigerator JFC-2089HPY

You don't do it from the back. You probably don't want to defrost the whole freezer, so just warm the supply tube with a hair dryer. When the water melts and starts running out, it will then be loose enough to pull free from the aluminum tube it is covering. Remove the aluminum tube, too, and make sure there is no ice all the back to where the water enters (this will be from the white plastic piece on the back).

Now..... why did it freeze? Most likely, there is a restricted airflow to the back of the unit, which is need to keep that aluminum supply tube just warm enough to assure all the water flow OUT of it into the icemaker, and doesn't freeze up on contact. Make sure your coils and the airspace under the fridge are completely clean (vacuuum them well) and it should cure the problem.

SOURCE: Hidden Ice build-up inside plastic bottom cover of freezer

Generally, icing is the result of too much water vapor inside the unit, blockage of the circulation channels and too much packing in of the box.  The water vapor is generally caused by: uncapped items in the fridge, opening the door too often, humid conditions, bad door seals.  There is of course, there is a possibility that the defrost cycle on the unit is not working.  About once a day, depending on the brand, you should notice that the fans and compressor don't run and you should hear a bit of creaking, sloshing or other strange noises as the ice melts.  If this is not happening, your defrost timer or the coil it heats could be bad.

SOURCE: kenmore coldspot - How do you remove the ice maker box to clean

I have the exact same Kenmore and exact same model #77292798. It's the top freezer model with ice maker. Here's what I did:

Empty everything in the freezer.
Turn water to ice maker off from source behind unit.
Remove bottom panel (two screws)
Every screw in the freezer is the exact same size. I used a screwdriver style socket and, I think
this works the best.
Remove ice maker (4 screws) and unplug from socket.
Remove rear panel (2 screws).

My freezer was loaded with ice underneath the bottom panel. The ice scraped away easily. There is a tin pan underneath the coils that drains toward the middle where the drain hole is. Again, my freezer was full of ice beneath this tin pan and, I had to scrape away. You may be tempted to try and remove the coil because it would be easier to get to drain hole. I tried this and, it did no good. Don't try it. Once all the ice was scraped away, I realized that the drain hole was plugged with ice. I used boiling hot water and used a squeeze bottle to pour the hot water into the drain hole. I then wrapped a paper towel around a thin screwdriver and used that to soak up the now cold water in the drain hole. After doing this a dozen times or so, the drain finally cleared.

Then, reassemble. This was a much easier task than I thought it would be and, will take care of it much quicker next time.