Garbage disposal will not power on at all; no humming, no sound; the status LED on the control module is off.

Safety first: Turn off the circuit breaker supplying power to the disposal and verify power is off using a non-contact voltage tester at the sink switch and the under-sink junction box.

• Check the reset/overload button: Locate the red or black reset button on the bottom of the Maxmatic disposal housing. Press it firmly until it clicks. Restore power and test the unit.
• Inspect the wall switch: With power off, remove the switch cover and check for loose wires on the switch terminals. Tighten any loose screws and ensure the switch is not burned or cracked. Replace the switch if suspected.
• Check the Maxmatic junction box: Under the sink, open the disposal’s junction box cover. Confirm wire nuts are tight on the line (hot), neutral, and ground connections. Look for signs of heat damage or melted insulation.
• Control module fuse (if equipped): Some Maxmatic digital models have a small inline or board-mounted fuse on the electronic control module. With power off, visually inspect the fuse; if blown, replace it with the same rating only. If it blows again, the motor or control may be shorted, and a technician should inspect it.
• Test power at the outlet: If the disposal is cord-and-plug connected, plug in a lamp or tester to confirm the outlet has power when the switch is on. If there is no power, the issue is upstream (breaker, GFCI, or wiring).

If the unit still remains completely dead after these checks, the internal control module or motor windings may be open, and professional diagnosis is recommended.