Question about Dishwashers
First thing you may want to check is the door switch. You can pull it off and measure the resistance with an ohmmeter. If you get good reading while pushed in and none while switch button is released, then it is a good start.
Next, you may want to test the timer's resistance. and make sure is operating correctly. After that would be the thermostat. (2) Hi-Level Thermotats resistance and then the Heating element.
The heater should measure much higher than 1 ohm.
A 1 ohm heater would use 120 amps which is way too high.
Make sure you remove at least one wire from the device you were measuring just to ensure you do not measure an alternate path.
The thermostat contacts should close at 161 F, this tells the unit that the water is hot enough to proceed with washing. Bypassing it so the unit thinks it is full of hot water should not cause a problem.
But it does not rule out other parts.
A crude way of checking it would be to remove it and heat up the face with a soldering gun while measuring the resistance. It should close once it gets hot. Unfortunately this does not tell you at what temperature it is closing.
You can also try to by-pass the thermostat and see if the machine runs a full cycl.
the culprit has been known to be the Selector Switch.
Posted on Nov 16, 2009
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Posted on Jan 02, 2017
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