Icemaker does not work on subzero 650

My ice maker on the Subzero 650 is up and running again. After checkig the tray and shutoff mechanism thoroughly I checked the display in the fridge aea and noticed a "service icemaker" indicator. I turned the icemaker off and then on again with no change. I then turned the power to the entire refridgerator/freezer unit off, waited ten seconds, and thurned it back on. This apparently must have reset some type of logic because the icemaker immediately began to cycle (ice ejector began to turn slowly) and then I heard the water soelenoid turn on to inject water into the ice trough. It's been 24 hours now and the icemaker tray is filling up nicely. I guess my icemaker just need to be rebooted. The miracles of modern technology. I appreciate the suggestions posted in response to my posting as well as the postings of others with similar issues as well as te corresponding suggestions. All of these together lead me to investigating areas that ultimately lead to resolution. I probably would have called for an expensive repairman if not for this forum. THANKYOU!

Solution #1 corrected the exact same problem for me and saved us an expensive repair visit! Thanks!!!!

If the ice tray is incorrectly placed, it may interfer with the lever that shuts the icemaker off when the tray is full...Or it may be the solinoid that allows the inflow of water to your icemaker has become plugged,defective, or frozen and if yours has a filter, replace that also.

First remove tray and check all around the icemaker unit, look for cubes or other ice in contact with the icemaker, remove the ice, and if needed, use a hair-dryer to melt any that you cannot get at.(Be VERY careful the melt water doesn't drip onto the dryer!)
Check shutoff lever or wire for damage, and replace ice tray, insuring it seats rearward completely, check for ice in about 3 hours. If ice isn't made, and you know the filter is good, you will most likely have to replace the solinoid.

Hello,
Here is a link to a sub zero repair video
http://www.appliancerepairlesson.com/shop/refrigerator/sub-zero-diy-repair-video-for-replacing-ice-maker/

I have a Model BI-30U SZ. When I replaced the water filter: 1) about three hours later it made a noise like it was backfiring; 2) the freezer light went out; 3) the compressor (I think it is a compressor) in the freezer eventually would not turn off; 4) finally the ice maker stopped working. I shut off the Icemaker. Repairman came. Analysis: When water pressure is high (as it is in my apt), the filter spurts out some water. Water travels down the back of refrigerator, hits the switch in the freezer that controls the light (and I guess the icemaker?), freezes the switch in place. Solution: In the back of freezer compartment, bottom left on my model behind lower shelf, there is a "switch". It actually looks like a plastic triangle protruding into freezer. Just push the switch in and it will pop out. Light comes on. Everything begins to work again. Wish SZ telephone support could have just told me this rather than having me wait around for a repairman and loose time on phone calls and from work.

Mine quit also, I believe after we lost temp (dusty compressor), and after vacuuming it, and restoring function, came back down to temp, line must have frozen, and a hair dryer seemed to work.