11 Quick Fixes for When Your Dishwasher Won’t Turn On

If your dishwasher isn’t turning on after loading it with dirty dishes, it can be quite frustrating. However, before you resort to handwashing, try troubleshooting these common issues that could prevent your dishwasher from starting.

Although some problems may require professional help, many are simple to fix, like a child safety lock or a “delay start” feature. Below, we outline 11 reasons your dishwasher may not turn on, along with easy fixes.

1. Child Safety Lock Is On
Before diving into more complicated issues, check if the child safety lock is enabled. If it’s turned on by accident, it can disable many of the dishwasher’s functions.

2. Door Isn’t Latching
Many dishwashers won’t operate if the door isn’t securely latched, as a safety measure to prevent water leaks. Ensure the door is properly closed or check if the latch needs repair or replacement.

3. Breaker Is Tripped
If the dishwasher has no power, check your electrical panel for a tripped breaker. If the appliance has a dedicated circuit, you may also notice other outlets or lights without power.

Warning:
Breakers are designed to trip when there’s a circuit issue. Only restore power if you’re sure there’s no problem with the circuit. If the breaker trips again, identify and resolve the issue before turning the power back on.

4. Water Pan Sensor
The water pan sensor detects water in the pan beneath the dishwasher and will stop the appliance from running if a leak is detected. The sensor could be sensing a legitimate leak or may be malfunctioning.

5. Faulty Water Inlet Valve
The water inlet valve controls the water flow into the dishwasher. If it’s faulty, the dishwasher won’t fill with water, preventing it from running.

6. Appliance Is Unplugged
Although dishwashers are usually hardwired, some have a plug that may come loose if the appliance was moved. Check if the dishwasher is plugged in and ensure the GFCI outlet hasn’t tripped. If it has, press the “RESET” button.

7. Thermal Fuse Is Blown
Dishwashers are equipped with a thermal fuse that protects the components from excessive heat. If the fuse blows, it shuts down the appliance. Inspect the fuse visually or use a multimeter to check for continuity.

8. Reset Is Needed
Dishwashers often need a reset to function properly. Turn off the circuit breaker for about a minute, then turn it back on, or follow the reset instructions specific to your model.

9. Sleep Mode Is On
Some dishwashers have a “sleep” or “standby” mode. If this mode is engaged, the dishwasher won’t start. Deactivate it to return to normal operation.

10. “Delay Wash” Is Selected
If the “Delay Wash” function is set, the dishwasher won’t start immediately. Check if a delay time is selected and adjust it accordingly.

11. Water Supply Is Off
If you’ve recently worked on plumbing or installed a new dishwasher, you may have forgotten to turn on the water supply. Without water, the dishwasher won’t function. Check that the water supply is turned on.

FAQ

How do you reset a dishwasher that won’t turn on?
The simplest way to reset your dishwasher is to turn off the circuit breaker for 30 seconds to a minute. Some models also have a dedicated reset button or function, often found by holding the “start/reset” button.

How do you know if your dishwasher’s fuse is blown?
A blown thermal fuse may be visibly burnt or melted. You can also test it for continuity with a multimeter. If it beeps, the fuse is still functional.

Where is the dishwasher fuse located?
The thermal fuse is typically found on the control board behind the door panel. You may need to remove a few screws to access it, depending on the model.