If your Whirlpool dishwasher is not turning on, it can be frustrating, especially when you’re relying on it to handle daily kitchen cleanup. There are several possible reasons why your appliance isn’t responding, ranging from a tripped breaker to an issue with the control lock feature. Before assuming the worst, it’s essential to go through a step-by-step troubleshooting process.
In many cases, a simple reset can restore power to the dishwasher. Checking the power source, ensuring the unit is plugged into an outlet, and verifying the water supply are also crucial steps. If the dishwasher is stuck in sleep mode or has a delayed start set, that could prevent it from starting as well.
In this guide, I’ll walk you through the most common reasons why your dishwasher may not be working and how to fix it. By the end, you’ll know exactly what to check and how to get your appliance running again.
What Are the Common Reasons for Whirlpool Dishwasher Not Turning On?
There are several possible reasons for the problem, ranging from power supply issues to control panel settings. Below are some of the most common causes and how to fix them.
| Cause | Description | Solution |
| Control Lock Activated | Prevents accidental starts. | Press and hold the lock button until the light turns off. |
| Sleep Mode Activated | Saves energy by disabling controls. | Open and close the door or press Start/Cancel buttons. |
| Delay Wash Option Selected | Schedules the start time. | Press CANCEL/DRAIN or START/RESUME to cancel delay. |
| Door Not Closed and Latched | Requires secure closure to start. | Ensure door is fully closed and latched. |
| Power Supply Issues | Tripped breakers or unplugged units. | Check breakers and ensure proper power connection. |
| Water Supply Not Turned On | Needs water to operate. | Check and open the water supply valve under the sink. |
| Faulty Parts | Defective components like door switches or control boards. | Requires professional diagnosis and repair. |
| Incorrect Control Panel Settings | Demo mode or incorrect settings. | Refer to the user manual and reset if necessary. |
Control Lock Activated
The control lock feature is designed to prevent unintended use of the dishwasher. If this mode is activated, the buttons won’t respond, and the dishwasher will not start. You can disable it by pressing and holding the lock button until the lock light turns off.
Sleep Mode Activated
If the dishwasher is in sleep mode, it will remain unresponsive until you disable it. You can disable sleep mode by pressing and holding the lock button or by opening and closing the door to reactivate the controls.
Delay Wash Option Selected
The delay wash option allows the dishwasher to start at a later time, which may cause confusion if it was unintentionally activated. To cancel the delay, press the CANCEL/DRAIN button or the START/RESUME button to begin the cycle immediately.
Dishwasher Door Not Closed and Latched Properly
The dishwasher won’t start unless the dishwasher door is completely closed and latched. Ensure that no items, such as the lower dish rack, are obstructing the door. Also, check for any misalignment or damage to the door latch.
Power Supply Issues
A tripped breaker, a faulty outlet, or an unplugged power cord can prevent the dishwasher from turning on. Make sure the dishwasher is plugged into an outlet securely. If it’s hardwired, check the electrical panel for a tripped circuit breaker and reset it if necessary. Avoid using an extension cord, as it may not provide sufficient power.
Water Supply Not Turned On
If the water supply is not properly connected or turned on, the dishwasher may not start. Check the water supply line under the sink and ensure it is open. Also, inspect for kinks or blockages that could restrict water flow.
Faulty Parts
If all other troubleshooting steps fail, a defective component could be the cause. A faulty door switch, control panel, or power supply board may prevent the appliance from operating. If you suspect a part failure, it may be best to schedule a service for professional diagnosis and repair.
Incorrect Control Panel Settings
Certain control panel settings, such as demo mode, may prevent the dishwasher from starting. Refer to the user manual to ensure all settings are correctly configured. If needed, try a hard reset by unplugging the dishwasher for one minute, then plug it back in and restart.
Advanced Troubleshooting
Defective Electronic Control Board
The electronic control board is responsible for managing all dishwasher functions. If it becomes defective, the dishwasher may not respond to any inputs, or it could display random errors. A faulty control board may also cause the dishwasher to turn on intermittently or not at all. Diagnosing this issue typically requires professional expertise, as it involves checking for damaged circuits or memory failures. If the board is determined to be faulty, a replacement will be necessary.
Damaged Power Supply Board
A malfunctioning power supply board can prevent the dishwasher from receiving the necessary power. If the appliance is completely unresponsive, does not light up, and remains nonfunctional despite checking the outlet, breaker, and power source, the power supply board could be the issue. Replacing this component requires technical knowledge, as it involves handling internal electrical parts. A professional technician can test and replace it if necessary.
Failed Door Switch
The door switch ensures the dishwasher only operates when the dishwasher door is securely closed and latched. If the switch is defective, the dishwasher will not start, even if the door appears properly shut. To check for a faulty switch, you can use a multimeter to test for continuity. If no continuity is detected, the switch will need to be replaced. Replacing the door switch involves disconnecting the wiring, installing a new switch, and ensuring the latch functions correctly.
Faulty Thermal Fuse
The thermal fuse is a safety device that prevents overheating. If the fuse blows, the dishwasher will lose power, and attempting to reset the dishwasher will not restore functionality. A blown fuse can be tested using a multimeter. If it is defective, replacing it is necessary, and it’s crucial to inspect for underlying causes, such as electrical surges or overheating issues.
Inspecting the Wiring and Connections
Loose or damaged wiring can also prevent the appliance from turning on. Check the power supply connections at the electrical panel, plug, and dishwasher terminals. If there are any burnt or loose wires, they will need to be repaired or replaced. Be sure to disconnect power before inspecting any internal wiring to prevent electrical hazards.
How to Reset Your Whirlpool Dishwasher?
Resetting your Whirlpool dishwasher can help resolve minor issues caused by software glitches, power fluctuations, or control panel malfunctions. There are two primary methods to reset your dishwasher, depending on how it is connected to the power source.
Unplugging the Dishwasher for One Minute
If your dishwasher is plugged into an outlet, the easiest way to reset it is by unplugging it. Simply disconnect the appliance from the outlet and leave it unplugged for at least one minute. This helps discharge any residual power from the control board. After a minute, plug it back in and attempt to start the dishwasher.
Turning Off the Circuit Breaker
If your dishwasher is hardwired and not plugged into an outlet, you will need to reset it using the electrical panel. Locate the correct circuit breaker and switch it off for one minute. After waiting, turn the breaker back on and check if the dishwasher starts.
A hard reset can often resolve software-related issues, but if your Whirlpool dishwasher is not starting even after a reset, further troubleshooting may be required.
Conclusion
Troubleshooting a Whirlpool dishwasher that won’t turn on involves checking several factors, starting with basic power supply issues and progressing to more complex internal components. Ensuring the dishwasher is plugged in, verifying the circuit breaker, and confirming the water supply are essential first steps. Additionally, control panel settings, such as sleep mode, delay wash, or control lock, can prevent the dishwasher from starting.
If these initial checks do not resolve the issue, hardware components may be at fault. A faulty door switch, thermal fuse, or damaged power supply board can prevent the dishwasher from operating. Advanced troubleshooting may require testing internal wiring, inspecting the electronic control board, or replacing defective parts.
For persistent issues, professional repair may be necessary. If resetting the dishwasher and performing basic troubleshooting does not restore functionality, consulting a qualified technician can help diagnose and resolve more complex electrical or mechanical failures.
FAQs
Why won’t my Whirlpool dishwasher start even when the door is closed?
Ensure the door latch is fully engaged, as an improperly closed door will prevent the dishwasher from starting. Also, check if control lock or sleep mode is activated. A faulty door switch could also be the issue, requiring testing with a multimeter and possible replacement.
How do I reset my Whirlpool dishwasher?
Unplug the dishwasher from the power outlet and leave it disconnected for at least one minute to reset the control board. If hardwired, turn off the corresponding circuit breaker for one minute, then restore power. This reset can help resolve software glitches or temporary electrical issues.
What if my Whirlpool dishwasher’s control panel is not responding?
Check if the control lock feature is activated, as this prevents button inputs. Ensure the power source is intact, including checking the outlet, power cord, or breaker. If the panel remains unresponsive, the control board may be faulty, requiring professional diagnosis and possible replacement.
Can I fix a faulty door switch myself?
If you’re experienced with appliance repairs, you can replace the door switch by disconnecting the power, removing the control panel, and installing a new switch. However, improper handling may lead to electrical hazards, so hiring a qualified technician is recommended for safety and proper installation.
