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Maytag Neptune TL Motor Control Board

My Maytag Neptune is not functioning properly. When a load is started it will fill with water, briefly tumble and then it basically gets stuck in a loop. It wont continue any further it just keeps going through a process of trying to tumble and the countdown timer remains at the same place. Indicator light stays on "wash" and it wont ever proceed to rinse or spin. If I turn it off or pause, it does not unlock normally. It does however unlock after 4 minutes - Troubleshooting manual says "The motor control is not responding if it takes 4 minutes to unlock. The motor control is either bad or disconnected" I decided to go ahead and further troubleshoot. I put into service mode and ran a quick service cycle. It locks the lid and begins but it never makes it past the initial tumble test. It just continues to try and tumble over and over. Going anywhere from 40-50 RPM. It never goes past this stage. I tried the "quick spin test" and it does the same thing, locks the lid, after that its supposed to spin to index of 90 RMP but it cant make it, just tries over and over. At this point I'm thinking its the Motor Control Board Troubleshooting for "wont spin" and "wont tumble" both suggest to do a motor control output test so I do that. I disconnected the JP4 as indicated in the instructions , put it into service mode and started the output test by pressing "Delicates" The screen display OT like its supposed to. I proceed to the next step by pressing "Whites" which is supposed to make it kick the motor on at 50 RPM. but what happens instead is there is a horrible screeching sound which seems to indicate that the motor cant spin or that there is some sort of problem. I dont see how an issue with the board would cause a loud screeching noise. So at this point in the troubleshooting guide it says "Check phase windings of the motor, if motor winding are good, replace the control board" I have no idea what the phase winding are or how to check that but based upon all the info provided does this seem like a board issue or a motor issue? Does anyone know how to check the phase winding they are talking about in the troubleshooting guide.

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If your washer never go to high speed spin then you need replace motor control broad an test your basket make sure it spin freely by just turn basket a noise good mean you have abad bearing they usely get worn out afther a few yaer

Posted on Jun 16, 2018

  • Jessica Mason
    Jessica Mason Jun 21, 2018

    I replaced the motor control board - same problem persists. Suggestions?

  • Dw Wooten
    Dw Wooten Jun 21, 2018

    hi jessica im so sorry that the motor control broad didnt fix your washe

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Posted on Jan 02, 2017

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dh1200s

dh1200s

  • 335 Answers

SOURCE: Maytag Neptune Top Load FAV6800AWW -- tub/motor will not spin

Hey Cameron,
I saw you post today on another forum and did not have time to put my thoughts down before work. I agree not a clutch issue I had to :), you would be so lucky. I own the machine and can’t offer any more troubleshooting then what you have done, good job of that. Unfortunately the FAV6800AW/FAV9800AW SM doesn’t have a whole lot of support for troubleshooting beyond what you have done for this issue. I found more info from the MAH3000 manual on the technical operation of the motor controller (slightly different controller). Both machines use the same troubleshooting paths. Remove JP4 which is;
P1 Motor Control common
P2 Torque (to Motor Controller) see page 1-11 MAH3000
P3 Motor Control Tach (to control board input)
My WAG is replace the Motor Controller 1st, then Control board 2nd and a possible tach issue related to the motor. That’s enough WAGing,…. but with troubleshooting not a complete WAG :).
Take a look at pages 2-5 thru 2-11, I keyed in on page 2-11 in the MAH3000, it may give you some additional insight, I know we are dealing with different machine designs but I think the designs are close regarding motor controller, the motor and what the Control Board is doing and looking for with input from the Motor Controller. I wish the FAV6800AW/FAV9800AW SM gave this kind of detail for troubleshooting. There is a nice little troubleshooting table on 2-11.
I keyed in on this note;

The motor control monitors the signals and communicates this information to the machine control (control board). The purpose of this signal is to tell the motor when to energize each winding in the motor and to tell the machine control the actual motor speed.

Then this note;
Note: If the machine control board does not receive an input signal from the motor control/tachometer circuit (JP4 connector), the motor speed will rapidly accelerate for 5 seconds then shut down. The machine control will sense a "locked rotor" condition and the motor will stop. If the motor control does not receive an input signal from the motor, the motor will "****" for 5 seconds then shut down.

I don’t believe you have that condition. I have worked with a forum member who had an issue with the motor controller related to an Lr error, locked rotor error and replacing the Motor Controller fixed the issue. Form here I vote for an issue with the Motor Controller. Not having known good parts makes this a difficult job.
The control board is under warranty for 5 yrs from DOP, the Control Board is 2 yrs. Ebay is a good source 25001079

I would push Maytag CSV for both. I got them to send me a Control Board after discussing my troubleshooting and that I had a neighbor (me) that was a repair tech who would install. I also had to send them copy of my warranty not sure why they beeded that my machine was on file with them.
In your console you will find a Troubleshooting guide if you haven’t pulled it out already. It has the schematic for the machine which I find handy. If you want a soft PDF copy of the schematic I can e-mail you. Just ping me at dh1200s@yahoo.com. I use that for one-way contact, just respond back on this post if you ping me, I don’t check the account for month’s at a time.
With my limited knowledge I will try to help you. Good luck. Rich

Posted on Jun 20, 2009

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The Inlet Water Solenoid valve may be stuck open not seating properly.

The Pressure Switch may not be signaling the Control Board to close the water valve on proper fill level.

But let’s start off with the easy test first. If you pull the 120VAC power cord from the service outlet will water flow stop?

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