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Fix a dishwasher that will not start

We'll check power, door latch, thermal fuse, and timer or control—or tell you when to call a pro.

Troubleshooting · Home appliances
15–45 min
What you'll need
  • Multimeter (for continuity tests on thermal fuse)
  • Screwdriver set (Phillips and flathead)
  • Replacement thermal fuse (if tests show it is blown)
Step 1 of 9

Quick triage — pick your path

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Choose the option that matches what you see. You can jump straight to that section.

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Steps

Goal: Confirm the symptom, then isolate the fault—power, door, thermal fuse, or control.

  • Select a normal wash cycle and press start. If nothing happens—no lights, no pump, no sound—the dishwasher does not start.
  • Symptom confirmed: Nothing happens when you press start. Proceed to Verify plug.
  • No problem: The dishwasher runs (tub fills, pump runs). If the tub does not fill, see Fix a dishwasher that will not fill instead.

Verify plug

Goal: Rule out an unplugged or loose power cord.

  • Check that the power cord is firmly plugged into the outlet. Push the plug in until it seats. Try starting the dishwasher again.
  • Good: Plug is secure. Proceed to Check power.
  • Bad: Plug was loose—secure it and test. If still no start, proceed to Check power.

Check power

Goal: Rule out a tripped breaker or dead outlet before opening the dishwasher.

  • Locate the circuit breaker for the dishwasher. If it is tripped, flip it fully off then on. If it trips again immediately, call an electrician.
  • Unplug the dishwasher and test the outlet with a lamp or phone charger. If the outlet is dead, the problem is upstream.
  • Good: Breaker is on and outlet works. Proceed to Check for child lock.
  • Bad: Breaker trips repeatedly or outlet is dead—fix power first or call an electrician.

Check for child lock

Goal: Rule out control lock or delay start before opening the dishwasher.

  • Check if the control lock is on (lock icon on the display). Hold the lock button for three seconds to disable it (see your manual). If delay start is set, cancel it or wait for the programmed time.
  • Good: Lock is off and no delay. Proceed to Check door latch and switch.
  • Bad: Lock or delay was the cause—disable and test. If still no start, proceed to Check door latch and switch.

Check door latch and switch

Goal: Confirm the door closes fully and the door switch engages.

  • Close the door firmly. Listen for a click from the door switch. Check for obstructions or a bent door latch.
  • If the door does not latch or the switch does not engage, the dishwasher will not start. Clear obstructions, straighten the latch, or replace the switch.
  • Good: Door latches and switch clicks. Proceed to Thermal fuse.
  • Bad: Latch or switch faulty—fix or replace, then test.

Thermal fuse

Goal: Test the thermal fuse and replace if blown.

  • Unplug the dishwasher. Locate the thermal fuse (often near the heating element or control area—consult your manual).
  • Use a multimeter to test for continuity. If the fuse has no continuity, it has blown—replace it with an exact match.
  • Good: Fuse has continuity. Power, door, and fuse all check good—timer or control board has failed. Call a pro.
  • Bad: Fuse blown—replace and test. If it blows again quickly, there is an overheating fault—call a pro.

When to get help

Call an appliance technician if:

  • The circuit breaker trips repeatedly (call an electrician for that).
  • The timer or control board has failed.
  • You have checked power, door, and thermal fuse and the dishwasher still does not start.
  • You are not comfortable working with electrical components.

Verification

  • The dishwasher responds when you press start—lights come on, pump runs, or tub begins to fill.
  • The door closes and latches properly; the door switch engages with a click.
  • No repeated breaker trips when the dishwasher runs.
  • The thermal fuse has continuity (if you tested it) or the dishwasher runs after replacement.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Confirm symptom Verify the dishwasher does nothing when you press start; rule out a different problem (e.g. runs but does not fill).
  2. Power Check the circuit breaker and outlet; reset or test with another device.
  3. Door latch and switch Inspect the door latch and door switch; check that the door closes fully and the switch engages.
  4. Thermal fuse Test the thermal fuse for continuity; replace if blown.
  5. Call a pro Timer or control failure, repeated breaker trips—call an appliance technician or electrician.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Whether the breaker is tripped
  • Outlet test result
  • Door latch and switch condition
  • Thermal fuse test result
  • Steps already tried

Does the dishwasher fail to start when you press start?

Select a normal wash cycle and press start. If nothing happens—no lights, no pump, no sound—the dishwasher does not start.

Select a cycle and press start. Symptom confirmed: nothing happens—no lights, no pump, no sound. No problem: dishwasher runs (tub fills, pump runs)—see Fix a dishwasher that will not fill if the tub does not fill.

Symptom confirmed No problem

You can change your answer later.

No action needed

The dishwasher starts and runs. No further action required for this problem.

Done

Is power reaching the dishwasher?

Check the circuit breaker and outlet. Reset the breaker if tripped; test the outlet with a lamp or phone charger.

Check the circuit breaker—reset if tripped. Test the outlet with another device. Breaker trips again: call an electrician. Outlet dead: fix breaker or wiring. Power good: proceed to door latch.

Yes No

You can change your answer later.

Fix power and test

Reset the circuit breaker or repair the outlet. Plug the dishwasher back in. Press start. If it starts, the problem was power. If it still does not start, return to this guide and proceed to door latch.

Done

Does the door latch engage and the door switch click?

The door must close fully and the door switch must engage for the dishwasher to start.

Close the door firmly. Listen for a click from the door switch. Check for obstructions or a bent door latch. Engages: proceed to thermal fuse. Does not engage: fix or replace latch or switch.

Yes No

You can change your answer later.

Fix door latch or switch and test

Clear obstructions, straighten a bent latch, or replace the door switch. Close the door and press start. If it starts, the problem was the door. If it still does not start, return to this guide and proceed to thermal fuse.

Done

Does the thermal fuse have continuity?

A blown thermal fuse cuts power to the control. Test with a multimeter.

Unplug the dishwasher. Locate the thermal fuse. Test for continuity with a multimeter. No continuity: replace with exact match. Continuity: timer or control has failed—call a pro.

Yes No (blown)

You can change your answer later.

Replace thermal fuse and test

Replace the thermal fuse with an exact match. Restore power and press start. The dishwasher should start. If it blew again quickly, there is an overheating fault—call a pro.

Done

Call a technician

Call an appliance technician if: the circuit breaker trips repeatedly (electrician for that); the timer or control board has failed; you have checked power, door, and thermal fuse and the dishwasher still does not start; or you are not comfortable working with electrical components.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a dishwasher not start at all?
Common causes: tripped circuit breaker, dead outlet, unplugged cord, faulty door latch or door switch, blown thermal fuse, or failed timer or control board. Check power and door first, then thermal fuse and control.
Can I fix a dishwasher that will not start myself?
Yes. You can check and reset the breaker, test the outlet, inspect the door latch and switch, and test or replace the thermal fuse with basic tools. If the timer or control board has failed, or if you are not comfortable with electrical work, call an appliance technician.
When should I call a technician for a dishwasher that will not start?
Call a technician if the timer or control board has failed, if you have checked power, door, and thermal fuse and the dishwasher still does not start, or if you are not comfortable working with electrical components.

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