Machine won't agitate - Maytag Neptune MAH5500B Front Load Washer

You are referring to the "agitator dogs". Does the unit run during the wash cycle put the agitator does not move?

see this causes and fix it. God bless you
Motor Coupling If the washer won't spin or agitate the motor coupling might have failed. The motor coupling connects the motor to the washer transmission. It is designed to fail if the washer is overloaded in order to protect both the motor and transmission.

Drive Belt If the washer won't spin or agitate, check the drive belt. If the belt is broken or if it isn't tight on the pulleys the washer won't spin or agitate properly.

Drive Motor If the washer won't spin or agitate the drive motor might be defective. This is not common. Check all of the other related parts to this symptom before replacing the motor. If the motor is visibly burned out or physically damaged, replace it.
Stator Assembly If the washer won't spin or agitate the stator assembly might be burned out. The stator is essentially one half of a motor, it interacts with the tub by creating a strong electro-magnet. If the stator burns out the washer won't spin or agitate. Check the stator for continuity. This part is often misdiagnosed.

Door or Lid Latch Assembly If the washer won't spin or agitate the lid switch assembly might be defective. This is a very common problem. The lid switch assembly can fail either mechanically or electrically. Test any electrical switches with an Ohm meter for continuity. The switches should have continuity according to their design.

Door Lock Motor and Switch Assembly If the washer won't spin or agitate the door lock assembly should be checked. The door lock can fail either mechanically or electrically. Test any switches on the door lock with an Ohm meter. The switches should have continuity according to their design.

Motor Control Board If the washer won't spin or agitate the motor control board might be defective. The motor control board provides power to the motor as well as direction and force. If the motor control board is defective the washer may not work at all or function properly.

The inlet solenoid is probably bad. And it won't agitate unless it fills and stops filling automatically.

this problem could be your lid switch

Hi Kathy.

If the washer does not agitate and spin, then the most common problem is the belt: Washer Drive V-Belt (part 28 in diagram 1)

If you can manually advance to spin but the machine does not agitate, then parts that may need to be replaced are the agitator:
Agitator (part 11 in diag 1) or the agitator drive in the transmission:Agitator Drive (pt.2 diagram 2)

To replace the belt remove the assembly at front top of the washer held by two philips screws and clips. Here description of replacement procedure.

Here Diagram 1

Here Diagram 2

Regards.

Ginko

Sounds like the fill switch needs to be replaced. A good way to test it is to set your machine on low fill and see if it fills past 3/4. If it does, it's the fill switch.

80040 is the part number for the agitator dogs you need. These wear smooth and won't grab after a while. Remove the agitator, sit it on the floor and hold it down with your feet and yank it apart. Remove the old dogs and install the new ones. Snap the agitator back together and put it back in the machine.
Video:


Service Manual

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WASHER FILLS WITH WATER, THEN WON'T AGITATE. TURN KNOB TO SPIN AND IT DRAINS THEN SPINS. STILL WON'T AGITATE please show me a diagram

Lid switch If the lid switch is defective, the washing machine may not agitate or function at all. The switch is inside the washing machine main housing near the door frame. Often you have to raise or open the top or front of the washing machine to get to the switch. If it's defective, you need to replace it.

Pull the agitator out and check the drive collar splines.If you have the model I think you have just pull straight up on the agitator. Once removed you will see the drive collar with a 7/16 head bolt,remove it and pull off the collar.First before pulling it off spin it if splines are stripped it will spin freely.