Solenoid water valve with electric coil, the same principle as a washer or fridge water inlet valve
Generic photo: ToT89 · CC BY-SA 4.0

How to test a water inlet valve (single, dual and triple coil)

Inlet valves are solenoid valves. Each coil opens one water path. Test each coil for resistance; a coil can be fine yet the valve still fail mechanically (clogged screen or stuck plunger), so check flow and the screen too.

Cross-checked ~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
  • Shut off the water supply before removing hoses

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 water inlet valve (single, dual and triple coil) · OnCall Tech