I have a Sub-Zero 700-TCI, SN M1661963. It's working fine after having a new compressor installed, last year. But the icemaker has not been functioning over the last week or so (hard to tell exactly when it stopped).
I've done the first tests, jumping the T and H holes and nothing happened. The unit is getting power, though, as power is coming from the V hole and I can hear some noise coming from the machine. No water, no movement that I can detect. My manual refers to the ejector position as a diagnostic tool, but doesn't bother to explain what the ejector looks like let alone what the 2:00 or 3:00 or whatever positions are. But it does say "replace icemaker modular head" if the unit doesn't run when jumping the T and H. Sound right? Or is there something more basic to check before buying parts?
I ask about the latter because I did have the water off a couple times, recently, replacing a hot water heater. Don't know if that might have affected the icemaker's water supply (it shouldn't, since I don't make ice with hot water!).