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FIXED MVWX500XW0 Maytag Bravos Fails Calibration test


Premium Member
Oct 25, 2017
Model Number
Hello all,
I'm trying to fix my Maytag MVWX500XW0 which gets stuck on wash cycle and starts flashing the lid lock indicator. I don't think this is a lid lock issue though (lid lock works fine in manual diagnostic mode).

1.I ran diagnostic mode and got: "Motor control fault. Test 3b" and "Basket speed sensor fault. Test 3a".
2. I also ran auto test mode and it will sometimes complete this cycle and other times fault out on the agitation step.
3.I also ran manual test mode and it passes every step (including agitation and spin where it normally fails during normal wash cycle).
4. I tried running calibration test before changing any parts-all the indicators light up, there is a electronic humming noise coming from the control board, after about 5 seconds the machine engages to either spin or agitate (I'm assuming), and then the calibration fails and all the lights turn off except for lid lock flashing
5. I tested motor control fault test 3b. and checked the 50uF capacitor. It was only holding 16uF, so I replaced it and thought I good to go.
6. Cleared codes, started calibration - and same result as above - calibration fails. Unit continues to give Motor control fault.

Any ideas would be great.

It sounds like possibly your control board is bad.

I located another thread with the similar problem as yours, and basically the same model: FIXED: Maytag Bravos MVWX500XL0 Not completing a cycle, lid lock light flashing

Read what Rick says to do in post#2 and ohm test the steps he says to take readings on.

If your lid lock switch tests fine, then its most likely the control board as Rick mentions in post#4.

And you can see Dave replaced the control board and that fixed it, you model uses the exact same control board and lid lock switch.

Let us know what you find.

Excellent, good find.:)

Thanks for the update!


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