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Trash Compactor Will Not Start

The part(s) or condition(s) listed below for the symptom Trash compactor will not start are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Trash compactor will not start

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Cause 1Start Switch

The start switch sends voltage to the motor to start the trash compacting cycle. If the start switch is defective, the trash compactor will not start. If the trash compactor makes a humming noise but won’t start, this indicates that the drive motor may be defective. To determine if the start switch is defective, use a multimeter to test the start switch for continuity. If the switch does not have continuity when the switch is activated, replace it.

Parts
Cause 2Safety Switch

When the trash compactor door is open, the safety switch opens to prevent the trash compactor from starting. If the safety switch is defective, the trash compactor will not start. To determine if the safety switch is defective, use a multimeter to test it for continuity. If the switch does not have continuity when activated, replace it.

Parts
Cause 3Door Switch

When the trash compactor door is open, the door switch opens to prevent the trash compactor from starting. If the door switch is defective, the trash compactor will not start. To determine if the door switch is defective, use a multimeter to test it for continuity. If the switch does not have continuity, replace it.

Parts
Cause 4Drive Motor

The drive motor might be defective. However, this is rarely the case. Before replacing the drive motor, first test all of the more commonly defective parts. If none of these parts are defective, use a multimeter to test the power to the drive motor. If the drive motor is getting power, but it won’t run, replace it.

Parts