How to test a solenoid (dispenser, ice door, lock, diverter)

A solenoid is a coil that pulls a plunger when energized. Test the coil resistance, the voltage it receives, and that the plunger moves freely.

Single source ~20 min easyBrands: 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
  • Live-voltage checks are a caution step: insulated probes, one hand, clips attached before power is restored, stay clear of terminals

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 solenoid (dispenser, ice door, lock, diverter) · OnCall Tech