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Troubleshooting Guide
Dishwasher Won't Start?
7 Common Causes and What to Check
You load the dishwasher, press Start, and nothing happens, or the panel stays dark altogether. Most of the time the cause is a setting or the door, and you can sort it out in a few minutes.
Quick answer: A dishwasher that won't start but has lights is usually waiting on the door latch, locked by the control lock, or counting down a Delay Start. If the panel is completely dark, check the breaker, any tripped GFCI, the outlet under the sink and any wall switch that powers it, then reset the control at the breaker. If it still won't start, call a technician.
Dishwasher still won't start? A technician can often come the same day in Chino and nearby cities. $75 diagnostic, applied to the repair.
Below are the seven reasons a dishwasher won't start, in the order to check them, and when to book dishwasher repair in Chino.
The seven causes
1. Door not latched
A dishwasher won't start a cycle until a switch inside the door latch confirms the door is closed and locked. Anything that keeps the latch from catching stops the cycle before it begins: a rack that isn't pushed all the way in, a utensil or pan handle sticking out, or a lower rack put back in backward, which Whirlpool (opens in a new tab) lists as a cause. GE adds trim, the cabinet or the countertop rubbing the door.
On a dishwasher that has worked for years and suddenly won't latch, the latch itself or the strike it hooks onto may be worn or broken.
Signs it's the latch:
- The Start light blinks, or the dishwasher beeps, after you press Start
- The door doesn't click shut, or springs back open a little
- You have to push or lift the door to get it to close
Can you fix it yourself? Yes for anything blocking the door. A broken latch is a part inside the door, wired to the control, so replacing it is a technician job.
- Push both racks all the way in and check that the rack wheels sit on their tracks.
- Look for anything sticking out past the racks.
- Close the door firmly and listen for the click.
2. Control lock, child lock or a special mode
Most dishwashers with electronic controls have a lock so nobody starts a cycle by accident. When it's on, a lock icon or light shows and the buttons do nothing; on Whirlpool models the lock light flashes three times if you press a button while it's locked, and some LG models show CL on the display. Some brands call it Child Lock. To release it, press and hold the lock button, or the pair of buttons marked with a lock symbol, for a few seconds. The owner's manual names the exact buttons.
GE lists two modes that can look like a dead dishwasher: a Sleep or Sabbath mode that turns off all lights and sounds even with power connected, and a Demo mode on some models.
Signs it's a lock or a mode:
- A lock icon or a lit Control Lock light
- Buttons don't respond, or the lock light blinks when you press them
- The panel stays dark, but the breaker and outlet are fine
Can you fix it yourself? Yes.
3. Delay Start is counting down
Delay Start lets you load now and wash later, so the dishwasher waits on purpose. The display shows the time left; GE models show hours such as 2H or 4H. Whirlpool cancels a delay with the Cancel/Drain button, and on other models you press Cancel or hold it until the control resets.
If the door is opened during the countdown, many models stop counting until you close the door and press Start again.
Signs it's Delay Start:
- Hours or a countdown on the display
- A delay light is lit
- The last cycle started later than you expected
Can you fix it yourself? Yes.
4. Start pressed, but the door wasn't closed in time
On dishwashers with the controls on the top edge of the door, you press Start and then close the door. KitchenAid's instructions are to press Start/Resume and close the door within 3 seconds (KitchenAid support (opens in a new tab)). Wait longer and the Start light just blinks.
The same blinking light appears when the door was opened mid-cycle or the power flickered. A dishwasher that goes quiet partway through isn't always stuck, either: KitchenAid notes that dishwashers pause two or three times during a cycle while they heat the water.
Signs it's the start sequence:
- The controls are on the top edge of the door, hidden when it's closed
- The Start or Start/Resume light blinks after you close the door
- Someone opened the door mid-cycle
Can you fix it yourself? Yes.
5. No power: breaker, GFCI, plug or wall switch
A completely dark panel usually means no power is reaching the dishwasher. Check the breaker panel, and press Reset on any GFCI outlet with Test and Reset buttons on that circuit. Many dishwashers plug into an outlet under the sink, where the plug can get knocked loose, and in some kitchens that outlet is controlled by a wall switch next to the disposal switch. Others are wired into a box behind the toe-kick panel.
After an outage or a surge, reset the control. Whirlpool suggests pressing Cancel, then switching off the breaker or unplugging the dishwasher for about a minute before restoring power.
Signs it's power:
- No lights, no beeps, no response at all
- A recent outage or a tripped breaker
- The garbage disposal or the outlet under the sink is dead too
Can you fix it yourself? Yes for the breaker, the GFCI and the switch. Leave the wiring box behind the toe-kick to a technician or an electrician.
6. No water detected, or a leak sensor has tripped
Some dishwashers won't run unless water is reaching them; Whirlpool says the cycle won't start if water isn't detected. Make sure the supply valve under the sink is open, especially after plumbing work, and see dishwasher not filling with water if it starts but never fills.
Many newer models also have a leak sensor or flood float in the base that stops the dishwasher when water collects there. Some flash a light and run the drain pump instead of washing. Water in the base means something is leaking, so find out where before you try again; dishwasher leaking covers the usual sources.
Signs it's the water or leak sensor:
- The supply valve under the sink was turned off or recently worked on
- A leak light flashes, or the drain pump runs and the cycle won't start
- Water on the floor or under the dishwasher
Can you fix it yourself? Partly. Opening the supply valve is simple; drying out the base and fixing the leak that tripped the sensor is a technician job.
7. Blown thermal fuse, failed touchpad or control board
When power reaches the dishwasher and every setting checks out, the electronics are next. A thermal fuse is a one-time safety part that cuts power if the control overheats, and once it blows the panel stays dead. A cracked or worn touchpad stops registering presses, and a failing control board can freeze, flash every light at once or show an error code.
Never bypass a thermal fuse or a door switch to get a dishwasher running. They're there to stop a fire or a flood.
Signs it's the electronics:
- Power reaches the outlet, but the panel stays dark
- Some buttons work and others don't
- All the lights flash, or an error code returns after a reset
Can you fix it yourself? No. Testing the fuse, the touchpad and the board takes a multimeter and the model's diagram, and the board usually has to be ordered for your exact model.
Lights on or panel dark: which problem do you have?
Start with what the panel is doing. It narrows seven causes down to one or two.
| What you see | Likely cause | What to try |
|---|---|---|
| Nothing lights up | No power, or Sleep or Sabbath mode | Breaker, GFCI, plug and wall switch |
| Lock icon or Control Lock light | Control lock or child lock | Hold the lock button a few seconds |
| Hours or a countdown on the display | Delay Start | Cancel the delay |
| Start light blinks | Door not latched or not closed in time | Close the door firmly right after pressing Start |
| Beeping every minute or so | Door opened during the cycle | Close the door to resume |
| All lights flashing or an error code | Control fault or a tripped sensor | Reset at the breaker and note the code |
| Hums, but no water comes in | Water supply or inlet valve | Check the valve under the sink |
A reset is worth one try
Switching the breaker off for a minute clears a control that froze after an outage, and it does no harm. If the same blinking pattern or code comes back right away, the dishwasher is pointing at something specific, so write the code down before you call. It tells the technician where to look first.
What to check yourself first
- Close the door firmly. Push the racks in, clear anything sticking out and listen for the latch to click.
- Look for a lock or a delay. Release Control Lock or Child Lock and cancel any Delay Start on the display.
- Press Start, then shut the door. On top-control models, close the door within a few seconds of pressing Start.
- Check the power. Reset the breaker and any GFCI, push the plug in under the sink and try the wall switch if there is one.
- Open the water valve. Make sure the supply valve under the sink is fully open.
- Reset the control. Switch the breaker off for about a minute, then back on.
One safety note: switch off the breaker before you reach behind the toe-kick panel or take the door panel off, and never bypass a door switch, a thermal fuse or a leak sensor to make the dishwasher run.
When to call a technician
- Power reaches the dishwasher, but the panel stays dark
- The door won't latch even with nothing in the way
- The same error code or blinking pattern returns after a reset
- The breaker trips again as soon as a cycle starts
- A leak light or water in the base keeps the dishwasher from starting
Sounds like yours? A technician can diagnose it at home in Chino and nearby cities, often the same day. $75 diagnostic, applied to the repair.
Era Service repairs dishwashers with front and hidden top controls across the Inland Empire and the San Gabriel Valley, often the same day in Chino and nearby cities.
Good to Know
Dishwasher Won't Start: FAQ
A dishwasher with no lights at all usually isn't getting power. Check for a tripped breaker, press Reset on any GFCI outlet on that circuit, make sure the plug under the sink is pushed in and try the wall switch if your kitchen has one. If power is fine, Sleep or Sabbath mode, a blown thermal fuse or a failed control board are the next suspects.
A blinking Start or Start/Resume light on a dishwasher usually means the door isn't latched or wasn't closed soon enough after you pressed Start. Press Start again and close the door firmly right away. If every light flashes or a code appears, the control has found a fault: switch the breaker off for about a minute, and if the pattern comes back, write it down and call a technician.
Check the settings that stop a dishwasher on purpose: the door latch, the control lock, a Delay Start countdown and, on top-control models, closing the door right after pressing Start. Then make sure the supply valve under the sink is open, since some models won't start without water. If all of that is fine, the door switch, the touchpad or the control board needs testing.
A dishwasher door that won't latch usually has something in the way: a rack not pushed all the way in, a rack wheel off its track, a tall item or a lower rack put in backward. If the door still won't catch, the latch or the strike may be broken, or the dishwasher may have shifted so the door rubs the countertop or cabinet. A worn latch is a straightforward part for a technician to replace.
Press Cancel to clear any cycle, then switch off the dishwasher's breaker or unplug it for about a minute and turn the power back on. That clears a control that froze after an outage or a surge. Some models also have a reset sequence in the owner's manual. If the dishwasher still won't start, or the same error returns, a reset won't fix it.
Press and hold the lock button, or the pair of buttons marked with a lock symbol, for a few seconds until the lock icon or CL goes out. Dishwasher brands label it Control Lock or Child Lock, and the buttons and the timing vary by model, so check the owner's manual if holding them doesn't work. Once the lock is off, the buttons respond again.
Dishwasher won't start? Let's get it running again.
Open 7 days a week, 9 AM to 6 PM, across Chino, the Inland Empire, the San Gabriel Valley and North Orange County, with a 2-hour arrival window and a 90-day parts and labor warranty from Era Service.
Related articles
Dishwasher Not Filling With Water?
Hums but stays dry, or fills too little: the valve, the float and the supply.
Read the guide →Dishwasher Leaking?
Water under the door or on the floor: the gasket, suds, hoses and the pump.
Read the guide →Dishwasher Not Draining?
Standing water in the tub: filter, drain hose, disposal knockout and pump.
Read the guide →Repairing a specific brand? Whirlpool repair, GE repair, LG repair, KitchenAid repair.