Make it Start with a Door Switch Dishwasher Repair
Make it Start with a Door Switch Dishwasher Repair
You would not even know your dishwasher had one up until it isn't working. These little switches are tucked inside the control board of your dishwasher and most times are a part of the door latch. The door latch pulls the door securely to the primary body of your dishwashing machine and avoids water from leaking during a cycle. If your dishwashing machine doesn't begin, it could be due to a faulty door switch.
How the door switch works
When the dishwashing machine door is open, the switch is off. Inside your dishwashing machine tub will be a metal or plastic prong. Close and lock the door. The prong will depress the door switch completely and the circuit will close permitting the dishwasher to start. Check the prong to make sure it's not loose or bent and it's effectively triggering the door switch.
It is very important to disconnect the dishwasher from its power source before trying any repair work. You can unplug the dishwasher from the outlet, eliminate the fuse from your fuse box, or flick the breaker turn on your circuit panel. This will avoid you from getting an electrical shock.
What a door switch appears like and where it's located
Typically a dishwashing machine door switch is an inch long. It can be black or red and has metal prongs called terminals extending from the body. Some door switches have two terminals and read this some have three.
The terminals can be a typical terminal (COM), typically closed terminal (NC) or a normally open terminal (NO). Changes with only 2 terminals will either have a COM and a NO, or a COM and an NC. Door changes with 3 terminals have COM, NC, and a NO.
Your dishwasher's door switch will lag the control board on the front of the system. It might be needed to remove the inner panel of the door initially. You can do this by eliminating a few screws. The screws at the bottom of the door are for the hinges. You do not require to eliminate the whole door for this repair.
Once the inner panel is removed you might find another smaller sized panel covering the back of the control board kept in place with screws or clips. By removing this panel you will get to the latch assembly real estate the door switch.
How to eliminate the switch
Carefully use needle nose pliers to pull the wires leading from the harness off the terminals. For door switches that have a locking clip, depress the lever as you carefully pull the harness far from the terminal.
How to evaluate your door switch
Use an ohmmeter to evaluate the switch for connection. This test is for door switches with three terminals.
1. Set your ohmmeter to measure resistance at a scale of Rx1.
2. Touch the metal ideas of the test leads together and zero your ohmmeter by changing the thumbwheel in the front of the meter up until the needles checks out "0" on the scale.
3. Touch one meter cause the COM terminal and the other lead to the NO terminal. Do not press in on the actuator.
4. Your meter needs to give a reading of infinity, implying the circuit is open, and there is no continuity.
5. Without moving the meter's leads, press down on the actuator till you hear a Visit the website 'click'.
6. With the 'click' of the actuator, the meter should produce a resistance reading of absolutely no ohms. This indicates the circuit is closed and continuity is present. (You will just hear this click with a door switch with 3 terminals.)
7. Keep the meter lead that is touching the COM terminal in place, but move the other meter lead from the NO terminal to the NC terminal.
8. When the actuator is released, you must receive a resistance reading of absolutely no ohms.
9. Now set your ohmmeter to its greatest resistance scale and touch one meter result in the NO terminal and the other meter cause the NC terminal.
10. The resistance reading in between these 2 leads ought to be infinite.
11. Lastly take a resistance reading from both the NC terminal and the NO terminal to any metal mounting hardware that belongs of the switch assembly. You ought to receive a typical reading of infinity.
Any readings that differ from the tests above are signs of a defective door switch that will require to be replaced.
Replace the old switch with a new one, using the very same process as described above. Reassemble the inner door panel and reconnect your dishwasher to its power supply. Don't forget to change your fuse or turn the breaker switch back on. Run your dishwasher through a cycle to make sure it's working properly.