Why slow spinning?

SOURCE: ERROR CODE E3

Here is what it says in Maytag's Technical Info Guide: Machine control is
attempting to drive the
motor but is not seeing any
tach response. Visual
check shows motor is not
moving. (Locked, Hall
Sensor fault)

Here is the web site for the guide:
http://www.servicematters.com/maytag_library/docs/16026736.pdf

Try this: take off the back panel and check the motor connections. Unplug them and look for any corrsion.
Hope this helps.

SOURCE: won't empty water slow spin in spin cycle

It spins, but doesn't pump If your washer spins but doesn't pump the water out, the drain line is probably clogged. In many washers, a small sock or other piece of clothing can get between the clothes tub and the outer tub that holds the water. If the clothing gets between the tubs, it may then get into the drain hose that's attached to the pump--or even into the pump itself. If it's in the pump, you need to remove the hoses from the pump and pull the item out.

To remove the sock from the outer tub port, open the washer's main access panel and remove the large-diameter rubber hose that connects the pump to the bottom of the outer tub. Then, using needle-nose pliers, try to grab and remove the clothing through the port.

Sometimes you can't remove the stuck clothing from below. Then you have to remove the agitator, top of the outer drum shield, and inner clothes tub. This isn't easy to do--and you may need special tools--so you might be happier getting a qualified appliance repair technician to do the job.

If the drain line isn't plugged, the problem may be with your pump. Even if the pump appears to be turning, the internal impeller may be broken. If so, you need to replace the pump.
if this helps please vote a fix ya

SOURCE: loud screeching noise on spin cycle

I have the same problem...during SPIN it make a LOUD SCREECHING sound.

SOURCE: E3 code showing sometimes on Neptune MAH-3

“E3” code – Machine control is attempting to drive the motor but is not seeing any tach response. Visual Check shows motor is not moving. (Locked or Hall Sensor fault.)
Possible causes of ‘E3’ codes: 1. Spin drum stuck – Verify that the spinner moves freely to eliminate this cause. 2. Hall Sensor fails or is loose – When the Hall Sensor fails or becomes dislodged, the control doesn't recognize that the motor is spinning and shuts down. The result will likely be an “E3” code in the worst case, or “SUdS” if it is only getting a partial rpm reading. Check wire harness connector(s) to motor.
Hall Sensor – PCB that is located on the back of the motor that senses motor rpm. It is not a separate part, but rather an integral part of the motor.

SOURCE: At the middle of my load there was stop with code symbol E3

E3 is that the machine can't see that the motor is spinning. Could either be a loose connector at the motor or a loose hall-effect sensor. this might be a fairly easy fix for a repair tech,