Why Is My Dishwasher Not Starting? 8 Common Causes and Fixes

You load the dishwasher, press Start—and nothing happens.

Maybe the control panel is completely dark. Maybe the lights come on but the cycle never begins. Or perhaps the dishwasher suddenly stopped responding even though it worked normally before.

Several simple problems can prevent a dishwasher from starting, but electrical or internal component failures are also possible.

Here are 8 common reasons your dishwasher may not start and what you can safely check.

Important: Dishwasher controls and startup procedures vary by model. Always follow your dishwasher owner’s manual. Do not remove electrical panels, test live wiring, bypass safety switches, or disassemble internal controls.

1. The Dishwasher Door Is Not Fully Closed or Latched

Most dishwashers will not begin a cycle unless the door is securely closed.

A dish, utensil, or rack may prevent the door from latching completely.

What to Check

Make sure:

• Both racks are pushed in completely.

• No utensil is sticking out.

• Large plates or pans are not blocking the door.

• The door closes firmly.

• The latch appears to engage normally.

Try opening the door and closing it again according to your manufacturer’s instructions.

When the Latch May Be the Problem

The latch or door switch may need service if:

• The door closes but the dishwasher still thinks it is open.

• The latch feels loose or broken.

• A door-related error code appears.

• The dishwasher repeatedly stops during cycles.

Never attempt to bypass the dishwasher’s door safety switch.

2. Control Lock or Child Lock Is Turned On

Many modern dishwashers have a Control Lock, Child Lock, or similar feature that disables the buttons.

When it is activated, the dishwasher may have power but refuse to start.

What to Do

Look for:

• Lock symbol

• Control Lock light

• Child Lock indicator

• Padlock icon

Check your owner’s manual for the exact button or button combination used to turn the feature off.

Some models require holding a button for several seconds.

3. The Cycle or Start Button Was Not Activated Correctly

Some dishwashers require a specific sequence before they begin.

For example, you may need to:

1. Select a wash cycle.

2. Choose additional options.

3. Press Start.

4. Close the door within a certain amount of time.

Other models may require the door to be closed before Start is pressed.

What to Do

Cancel the current selection if necessary and follow the startup instructions in your owner’s manual from the beginning.

Also check whether the Start button needs to be:

• Pressed once

• Held briefly

• Pressed again after opening the door

• Confirmed before closing the door

If the control panel responds normally but the dishwasher does nothing, move on to the next checks.

4. The Dishwasher Is Not Receiving Power

If the dishwasher has no lights, no display, and no sounds, it may not be receiving electrical power.

What to Check

If your dishwasher has a visible plug and it can be checked safely, make sure it has not come loose.

Some dishwashers are hardwired rather than plugged into an outlet, so there may be no visible power cord.

Do not pull the dishwasher out or remove electrical panels to look for wiring.

If the appliance remains completely dead after basic power checks, professional diagnosis may be needed.

5. The Circuit Breaker or GFCI Has Tripped

A tripped circuit breaker or GFCI may cut power to the dishwasher.

Check the Breaker

If you are comfortable checking your home’s electrical panel:

• Keep your hands dry.

• Locate the breaker identified for the dishwasher.

• Check whether it has tripped.

Follow normal breaker-reset procedures only if you know how to do so safely.

Check for a GFCI

Depending on your home and installation, the dishwasher circuit may be associated with GFCI protection.

A tripped GFCI may need to be reset.

Important Safety Warning

If the breaker or GFCI trips again, do not repeatedly reset it.

Repeated tripping may indicate an electrical problem.

Stop using the dishwasher and contact a qualified professional.

6. The Dishwasher Is Not Getting Water

A water-supply problem may prevent some dishwashers from starting normally or may cause them to stop shortly after attempting to begin a cycle.

Possible causes include:

• Dishwasher water-supply valve turned off

• Restricted water supply

• Kinked inlet hose

• Household plumbing problem

• Water inlet valve problem

What to Check

If the dishwasher’s shutoff valve is safely accessible under the sink, make sure it has not accidentally been turned off.

If the visible water-supply hose is kinked or pinched, that may restrict water flow.

Do not disconnect hoses or take apart the water inlet system just to investigate.

If your dishwasher appears to start but no water enters, see our guide Why Is My Dishwasher Not Filling With Water? 7 Common Causes and Fixes.

7. Delay Start or Another Setting Is Preventing the Cycle

Sometimes the dishwasher is working exactly as programmed—it just isn’t supposed to start yet.

Many machines have settings such as:

• Delay Start

• Delay Hours

• Scheduled Start

• Sleep or quiet modes

• Energy-saving settings

What to Do

Look at the control panel for:

• A clock symbol

• A number of delayed hours

• Delay indicator

• Scheduled-start message

Cancel the delay according to your dishwasher’s instructions.

If you recently changed cycle settings, restore the normal cycle and try again.

8. A Door Switch, Sensor, Control Board, or Internal Component May Be Faulty

If the simple checks do not solve the problem, an internal component may be preventing the dishwasher from starting.

Possible issues can involve:

• Door switch

• Control board

• User-interface panel

• Sensor

• Water inlet valve

• Internal wiring

• Another electronic or mechanical component

Signs of an Internal Problem

You may notice:

• Dishwasher is completely unresponsive despite having power.

• Control-panel lights flicker or behave strangely.

• Buttons stop responding.

• The dishwasher starts only occasionally.

• Error codes repeatedly appear.

• The dishwasher stops immediately after starting.

• Basic troubleshooting changes nothing.

Do not remove the control panel, inspect internal wiring, test live electrical components, or bypass switches.

Internal electrical diagnosis should be handled by a qualified appliance technician.

Dishwasher Has No Lights: What Should You Check?

If the dishwasher appears completely dead, start here:

1. Make sure the door is closed.

2. Check for an obvious loose power connection if your model has an accessible plug.

3. Check the circuit breaker if you can do so safely.

4. Check whether a GFCI has tripped.

5. Look for signs of a household power problem.

If the breaker keeps tripping or the dishwasher still has no power, stop troubleshooting and contact a professional.

Dishwasher Has Lights but Won’t Start: What Should You Check?

If the control panel lights up, check:

1. Door closure and latch

2. Control Lock or Child Lock

3. Selected wash cycle

4. Start-button procedure

5. Delay Start

6. Water supply

7. Error messages

If all of these appear normal, an internal switch, sensor, or control problem may need professional diagnosis.

Safe Step-by-Step Troubleshooting

Step 1: Check the Door

Remove anything that may stop it from closing completely.

Step 2: Check Control Lock

Look for a lock symbol or indicator.

Step 3: Select the Cycle Again

Follow the exact startup sequence in the owner’s manual.

Step 4: Check Delay Start

Make sure the dishwasher is not scheduled to begin later.

Step 5: Check Basic Power

If the dishwasher has no lights, safely check the accessible power source, breaker, or GFCI.

Step 6: Check the Water Supply

Make sure the dishwasher’s accessible water shutoff has not been turned off.

Step 7: Look for Error Codes

Write down any code and check it against the manufacturer’s troubleshooting guide.

Step 8: Stop Before Internal Repairs

If the remaining possibilities involve wiring, switches, controls, sensors, or valves, contact a professional.

Common Mistakes to Avoid

Repeatedly Pressing Buttons

If Control Lock or Delay Start is activated, repeatedly pressing Start may not solve anything.

Check the settings first.

Slamming the Dishwasher Door

A door that does not latch normally may have an obstruction or damaged component.

Do not force it.

Repeatedly Resetting a Tripped Breaker

If the breaker trips again after being reset, there may be an electrical fault.

Have the problem professionally inspected.

Removing Electrical Panels

Do not open control panels or expose wiring to diagnose a starting problem.

Bypassing the Door Switch

The door switch is a safety device.

Never bypass it to force the dishwasher to operate.

Assuming Cleaning Products Will Fix It

Vinegar, baking soda, bleach, or another cleaner will not repair an electrical control, door switch, sensor, or power problem.

When to Stop Using the Dishwasher

Stop using the dishwasher and seek professional help if:

• You smell burning or an electrical odor.

• You see smoke.

• The breaker repeatedly trips.

• Water is leaking near electrical components.

• The dishwasher sparks.

• The control panel becomes unusually hot.

• The appliance behaves erratically.

• You hear unusual electrical buzzing.

If water is near an outlet, cord, or electrical component, do not stand in water while touching electrical equipment.

When to Call an Appliance Professional

Consider professional service if:

• The dishwasher has power but will not start.

• The dishwasher has no power despite basic checks.

• The breaker or GFCI repeatedly trips.

• The door latch appears damaged.

• Buttons or controls do not respond.

• Error codes repeatedly return.

• The machine starts and immediately stops.

• An internal switch, sensor, control board, or wiring problem is suspected.

• Troubleshooting would require removing electrical panels.

Frequently Asked Questions

Why does my dishwasher have power but won’t start?

Common causes include the door not being latched, Control Lock being active, Delay Start being enabled, an incorrect startup sequence, a water-supply issue, or an internal control problem.

Why is my dishwasher completely dead?

The dishwasher may not be receiving power.

Check the accessible power connection, circuit breaker, and GFCI if you can do so safely.

If those appear normal, professional diagnosis may be necessary.

Can the door latch stop a dishwasher from starting?

Yes.

Dishwashers typically use a door-latch safety system to prevent operation when the door is not securely closed.

Why is the Start button blinking?

The meaning of a blinking Start light varies by brand and model.

It may indicate an interrupted cycle, open door, control setting, or error condition.

Check your owner’s manual.

How do I know if Control Lock is on?

Look for a lock icon, Control Lock light, or message on the display.

Your manual will explain how to turn it off.

Can a water-supply problem stop the dishwasher?

It can prevent some dishwashers from progressing normally through the cycle or trigger an error.

Check that the water supply has not been shut off.

Should I reset the circuit breaker?

A single reset may be appropriate if you know how to do it safely.

If the breaker trips again, stop resetting it and contact a qualified professional.

Why did my dishwasher suddenly stop working?

Possible causes include:

• Power interruption

• Tripped breaker

• Control Lock

• Door-latch problem

• Water-supply issue

• Internal component failure

Start with the simple controls and power checks first.

Final Thoughts

If your dishwasher will not start, check these 8 common causes:

1. Door is not fully closed or latched

2. Control Lock or Child Lock is enabled

3. Cycle or Start procedure was not completed

4. Dishwasher is not receiving power

5. Circuit breaker or GFCI has tripped

6. Water supply is off or restricted

7. Delay Start or another setting is active

8. Door switch, sensor, control, or another internal component is faulty

Start with the simple settings and safety checks.

If the problem involves repeated breaker trips, burning smells, leaking near electrical components, or internal electrical parts, stop troubleshooting and contact a qualified professional.