Unless the switch is fully depressed the dishwasher will not operate. To check the condition of the switch, turn on the house appliance with the door open. Simply open the door, close the latch and select a cycle and depress the switch. ... Aha! How do you test a dishwasher door switch? Confirm that your dishwasher has been unplugged before starting. Look for any cracks, damage, or large debris that could be preventing the door from sealing completely. Another option: dishwashers that won’t start may have a faulty door latch or door latch switch to blame. To test a dishwasher door latch assembly using a multimeter follow these steps. I will add a switch that allows me to override the door switch for safety reasons. ... Unscrew the kickplate panel below the door, disconnect the wires from the switch to test the switch for continuity. Door status check shows door is open, all LED’s flashing. Touch the metal tips of the test leads together and zero your ohmmeter by adjusting the thumbwheel in the front of the meter until the needle reads '0' on the scale. Appliance: General Electric Dishwasher GDF570SGJ0CC My Repair & Advice. Then, locate the switch and press it. ... On a hunch that it related to the door switch, I took the door apart and checked the switch. First, check your dishwasher door and door gasket. The problem: Dishes aren’t properly dried. This part is sold individually and is an OEM part, built specifically by the manufacturer. Any ideas on what else to check before replacing control board? Replacing door latch did not fix the problem. If your latch is fine, check the timer or electronic control, especially if your drain pump motor isn’t starting up. If your door isn’t properly closed, the dishwasher will not start. This prong comes in contact with and activates the door switch when the door is closed. Perhaps the prong on the inside of your dishwasher is missing or damaged, leaving it incapable of activating the door switch. If the dishwasher does not start when the switch is pressed, it indicates that safety switch is the problem. The switch reads fine. Installed the UI board and it the dishwasher works fine now. I know that disabling the door switch is not recommended and was forbidden by my teacher. Before you start dismantling your dishwasher, you must check out if the safety switch is the problem or the latch. The dishwasher door gasket isn’t creating a watertight seal anymore. This switch interlock is found on your dishwasher door, and it must be actuated for the dishwasher to start. Installed them and it was still dead. Ordered a control board and door latch first. Note that if the test is successful, with the door open, the dishwasher will operate and water may spray out. If your dishwasher door does not close properly, or if the machine will not start, you may have a problem with your switch interlock. Begin by setting your ohmmeter to measure resistance at a scale of Rx1. Then, ordered the user interface board. I just figured out how to used the diagnostic test correctly. Before you test the door switch, examine the prong attached to the inside of your dishwasher tub. I get E6, which is the water sensor. The latch assembly also tells the dishwasher the door is closed using a small micro switch which can fail. It is a simple matter to determine whether the door latch is the problem. It is approx 3 years old. The reason I need to override the switch is for testing and demonstrating the operation of the dishwasher, of course this will be done only in the cold cycle of the dishwasher. You may have to turn off the breaker if your dishwasher is directly connected. A faulty dishwasher thermostat may cause more than one symptom, because you may have two different thermostats in the dishwasher… Bosch Dishwasher runs with door open or not al all and behaves oddly. How to Test If a Dishwasher Thermostat Works. Dishwasher will not start, 3 beeps and blinking start light. Use your ohmmeter to test your switch for continuity.