Why Won’t My Dishwasher Turn On?

Dishwasher Won’t Start? Here’s What to Check:

Before you call for service or start shopping for a new dishwasher, take a few minutes to troubleshoot. Many startup issues can be resolved without a technician.

Start with Simple Fixes

  • Power Supply
    • Make sure the dishwasher is plugged in.
    • Check the circuit breaker—reset if needed.
  • Child Lock
    • Look for an active child lock. Consult the manual to disable it.
  • Reset the Cycle
    • The previous cycle may have been interrupted. Try resetting or starting a quick cycle.

Check These Key Parts

1. Door Latch or Door Switch

  • The dishwasher won’t start if the door isn’t securely closed.
  • Test the switch using a multimeter.
  • Replace if there’s no continuity.

2. Timer or Control Board

  • The timer sends power to key components.
  • A faulty timer can prevent startup.
  • Electronic models may require live testing—call a pro for that.

3. Selector Switch

  • If the buttons don’t respond, the selector switch could be stuck or defective.
  • Remove the panel and test for continuity.

4. Motor Relay

  • The relay sends power to the motor.
  • If it fails, the motor won’t run.
  • Test it near the motor using a multimeter.

5. Thermal Fuse

  • Prevents the control board from overheating.
  • A blown fuse cuts power.
  • Replace if needed.

6. Drive Motor

  • Powers the spray arms and water circulation.
  • If you hear a loud hum, the motor may be stuck or burned out.
  • Test it with a multimeter and replace if faulty.

Not Sure What’s Wrong?

If you don’t have a multimeter or aren’t comfortable removing panels, contact Nifty Nashville Appliance Repair.

The certified dishwasher appliance repair tech will identify the problem and get your dishwasher running again. Ask about service availability and potential warranty coverage before booking your appointment.

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