Product review (4 stars): Saved over $500 replacing it myself on SubZero 201R refrigerator with right tools from amazon.
The SubZero guys wanted $600 to replace my the one in my 201r refrigerator. For $38 I thought I would do it myself and was glad I did.
My first attempt failed because it appeared that I would have to pull out the refrigerator and work on it from the front and back. The refrigerator was tiled in place and could not be pulled out. Called SubZero tech support and was told all parts were replaced from the front. I looked like it would be impossible without going in from the back also.
I used needle nose pliers to hold fan nut from condenser side and turned motor with needle vicegrips to remove fan. Had to order gearless micro 1/4 ratchet on amazon that could fit under the motor bracket. Removed motor and replaced with new one. Wiring was pretty straightforward.
I could not easily find a ratchet locally that would work. That is the trick that the SubZero guys know because otherwise it would pretty much be to difficult without it. If you search amazon for Titan 1120, that is the one that worked for me. Also helps to take a photo from the condenser side of the fan. You will be able to tell how to approach taking the nut off of the fan. My fan is plastic so I was super carful. Metal fans should not pose any problems.
Did the whole $600 job for less than $60 including parts and tools purchased. Took about hour but could do it now in 30 min or less.