Disposal makes a loud humming noise when switched on but the grinding plate does not spin.

Safety warning: Immediately turn off the switch and disconnect power at the breaker. Never attempt to free a jam with power connected.

• Visual inspection: Shine a flashlight into the chamber and identify any foreign objects.
• Remove debris: Use pliers or tongs to remove objects. Do not insert your hand.
• Manual rotation: Use the Miele jam wrench or a hex key on the bottom of the motor shaft to work the rotor back and forth until it spins freely.
• Test with water: Restore power, run cold water, and briefly operate the unit. If humming persists, the motor or bearings may be damaged and require replacement.