Water but no ice

Brand: kenmore
Model Number:106.5178
Main Symptom: water works, ice maker not
What happens & when: there is only humming sound when getting ice

Error Code (if any):not known
Parts or tests already tried: new motor installed
Photos / video link:

We will need the complete model number for accurate research.
Based on the info provided…1. is there ice in the bucket and it is not dispensing, or 2. is there no ice in the bucket or ice maker?

The ice maker works fine and fills the bucket. However, when switching from water to ice the motor does not work. (we installed a new one) there is humming sound when pushing the pad ,but no turning of the arm/coupling. It is a rental unit so ice may have clumped up between guests and caused damage, which is why we got a new motor thinking that to be the issue. But did not solve problem. Kenmore model 106.51783 412. Thanks

Sounds like the shaft is not engaged or the couplings are broken or out of place.
See diagram.