My dishwasher refuses to start. At first this was intermittent, now it is a permanent fault.

The dishwasher thinks the door is open, but it is not.

Machine in question: DCS DD24DUT7 88645-A

I'm almost certain that the sensor is (infrared?) light based. I have removed the drawer, and have spotted in the chassis, what I think is, some sort of prism.

I also took the front off the door, and spotted the active side, what I think is a guide for the light source that is housed in a sealed module.

Together, they seem to form some sort of U-shaped light path that can be opened and closed.

I would like to know if there is a DIY fix that lets me bypass this sensor completely? I just want the machine to start washing, and care less about sensing a door that may be open.

On the chassis:

this looks like a plastic prism

On the door:

this looks like a light source and a light sensor

  • Have you tried to jumper across the switch. I would start there. – Paul Logan Nov 30 '17 at 5:12
  • 1
    try placing a strip of light-color masking tape over the whole thing. if that doesn't work, you can short the leads of the sensors; the trick is not shorting the IR LEDs but the phototransistor leads instead. a multimeter should report a voltage on the LED leads, and nothing for the sensor leads. – dandavis Nov 30 '17 at 19:53
  • Thanks dandavis, I will definitely try that, once I undo my subsequent screw up. While dismantling the "badge isolator" in the door, I broke the Ferrite Core, and now nothing works anymore. – Bram Dec 1 '17 at 2:32

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