How do I verify the wax motor with a Ohms meter? How is her resistor?
Answer Hello Le. Check the wax motor for proper resistance.
This check should be made with the electrical
supply disconnected from the washer. Remove
the wire harness from the wax motor
terminals and place the ohm meter probes on
the terminals of the wax motor. The wax motor
should have a resistance of approximately
1900 ohms at room temperature. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
What is the function of the wax motor?
Answer Hello Gary,
The wax motor provides a safety measure to the door lock to prevent the door from opening before the tub has completely stopped it's rotation. Basically a wax motor is paraffin wax in a confined space that, when voltage is passed through it, heats the wax, causing it to expand, pushing the plunger out which activates a linkage which locks the door and tells the control the door is locked by activating the door lock switch. This also explains why the door takes about 3 minutes to unlock because that's the time it takes for the wax to cool and contract which unlocks the door as it pulls the linkage back the other way.