Ice maker water supply pump has no power

ICE maker worked fine before tenant disconnected water supply line to connect to a water filter. When I reconnected water supply to the ice maker supply pump the pump did not run. Multi meter indicated no power to pump. have had no luck finding a wireing diagram in an effort to determine if there is a resister, cap, or relay that might be bad. Any help anyone might provide would be appreciated.

thank you

dojetdriver