I have a Maytag MAH4000AWW
(serial #38294273WF), which I bought used about a year ago.
The washer has worked pretty reliably. For about 2 weeks last fall, I had problems getting the machine to complete the cycle. After either just letting the washer sit for a few hours or sometimes moving the knob to a new position, I could get it to complete the cycle. That problem went away and the washer worked fine until today.
Now, I cannot get the washer to tumble or spin. The door lock light comes on and the washer fills and drains correctly. But it shuts off just after a few seconds no matter what I try. Normally, I can hear a high-pitched whine when the drum starts to turn at the beginning of the cycle. The washer now shuts off before that sound appears.
I read numerous posts online about the R11 resistor (transistor?). I pulled the circuit board and R11 looks fine and there is no sign of any damage anywhere on the board.
I checked to see if the door lock mechanism might be the problem. It does not look like the wax motor on the lock mechanism is moving at all. I tried to "trick" the machine by simultaneously a) pushing in the sensor/switch that indicates the door is closed (which turns off the light), b) rotating the spring-loaded cam on the lock to the closed/locked position and c) pressing the start button. The wax motor never moved at all.
I see the wax motor actuates two micro switches. I tried the same procedure above with both of those micro switches actuated, but still no tumbling/spinning. Lastly, I manually moved the spring-loaded rod that the wax motor pushes so that both of the micro switches were activated and the machine still won't tumble or spin.
I'm no electronics whiz-kid, but I am pretty mechanically inclined. I have a multi-tester. But I can't tell where to start diagnosing this problem.
Is it possible that the wax motor on the lock has gone out? Or is this a problem with some other part that is preventing the wax motor from activating? Or did I make a mistake in diagnosing the door-lock wax motor issue?
I would appreciate any guidance anyone might have on how I can track down the source of the problem and try to fix it.
Thanks in advance for your help.