My Dishwasher Won’t Start: How Do I Fix It?

If you need to know how to fix a dishwasher that won’t start, we are here to help.

Step One: Check the Door

First, check that the door is closing and latching properly. If it is, unplug the dishwasher and use a multi-meter to check that power is passing through the door switches.

Step Two: Check the Timer

When you activate the dishwasher, you should hear water being drained. If you don’t, unplug the machine and use a multi-meter to check that the timer is activating the motor. If your model uses an electronic control, check the panel for a fault code.

Step Three: Check the Selector Switch

In some models, the selector switch controls when the dishwasher starts to fill. Make sure the switch is completely depressed and use a multimeter to confirm that it is fully functioning.

Step Four: Check the Motor Start Relay

If power is reaching the motor, the problem could lie with the motor start relay. This part uses a plunger to activate a set of contacts, so take it out and turn it upside down to check that the plunger is depressing.

Step Five: Check the Thermal Fuse

If the thermal fuse stops working it cuts power to the control board. The best way to check it is by removing the wires from the fuse and using a meter.

Step Six: Check the Drive Motor

If the start relay is working, then the issue lies with the drive motor. If the motor is making a loud noise, it may have seized. If it isn’t making a noise, use a multi-meter to check that power is reaching the motor windings.


If you are trying to work out how to fix a dishwasher that won’t start, don’t forget the manual. If these steps don’t work for you, contact the manufacturer if you still have a warranty for your appliance, if not contact a loca appliance repair company that specialize in fixing your particular model, as they will fix it for a lot less than what your manufacturer will charge.

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