Electric drive motor removed from a washing machine
Generic photo: Poo (Wikimedia Commons user) · Public Domain

How to test a dryer drive motor and its centrifugal switch

Dryer motors have a centrifugal switch that drops out the start winding once the motor is up to speed and, on most models, also closes the heater circuit. Test the windings at the motor and the switch contacts in both positions.

Cross-checked ~45 min moderateBrands: Whirlpool / Maytag / KitchenAid, All

Before you start

  • Unplug the appliance or turn off the breaker before opening panels or disconnecting parts
  • Take a photo of the wiring before removing any wire
  • Resistance and continuity tests are done with power OFF and the part isolated
  • Electric dryers are 240 V: switch off the double-pole breaker or unplug

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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How to test a dryer drive motor and its centrifugal switch · OnCall Tech