Washing Machine Diagram / September 4, 2018 / Penny Brenner.
Dishwashers use pressure switches that are similar to those used in washing machines. However, instead of having one switching point, they have multiple levels. For example, a two-position switch may switch at 10cm and 15cm of water, while a three-position switch may trip at 15cm, 25cm and 35cm of water.
If it does not show a reading it means the heating element is faulty. A professional make use of the ohmmeter to read across both terminals once more and the earth terminal on the element. Here however, a positive reading means a faulty heating element while a negative reading mean no fault with the heating element. This is not a job for the average person. If you are not well versed with electronics don't even consider experimenting.
You should be competent with electrics with a degree of experience to do the above test has it involves opening your appliance and removing and replacing wires inside the machine that will become live once the wires are replaced and the washing machine is turned on, there is no "zero" place for mistakes on this job, if you do not fully understand house hold electrics you should not attempt the test. You can get a lot more free advice or a low cost repairs source by following this link to our washing machine repairs web page.
These switches also look a lot like washing machine pressure switches, except they have multiple electrical terminals (six or even nine) and don't have external level adjustment. However, some have screwdriver adjustment for both the trip levels and the hysteresis. When extracting the pressure switch from a washing machine, be careful that you don't also inadvertently