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The DD motor can be driven from stopped to maximum speed in infinite steps in either direction.
There are 36 poles on the stator; 12 permanent magnets spaced around the rotor. There are no
brushes to wear out. Unlike a more traditional brushless motor, the rotor surrounds the stator
rather than being attached to it. 

Result

5-15 

Ω

5-15 

Ω

5-15 

Ω

Test Points

(1) to (2)

(2) to (3)

(3) to (1)

WINDINGS

(1)

HALL SENSOR

(3)

(2)

If measuring voltage from the Main PCB Assembly to the Hall Sensor, use the following steps:
1. Unplug power cord.
2. Remove rear washer panel.
3. Locate Hall sensor connector on the stator behind the rotor.
4. Place meter leads on terminals 5 to 4, white to gray.
5. Plug in power cord, close door, and press power button. 

DO NOT PRESS START!

6. You should measure 10 to 15 Vdc. If 10 to 15 Vdc is present, control board, white wire, and gray

wire are OK! If not follow testing output voltages on control board in next section.

7. To measure output signal voltage from the hall sensor, carefully  move test leads to terminals 1 to

4, blue and gray. Slowly rotate motor rotor by hand. You should read a pulsing 10 Vdc. If 10 Vdc
is measured from 1 to 4, move lead on blue wire to red wire, terminal 2. Repeat rotating motor
rotor by hand. You should  read a pulsing 10 Vdc from red to gray.  

8. If pulsing 10 Vdc is measured from 1 to 4 and 2 to 4, hall sensor  is OK! If either test netted only 9

to 10 Vdc without changing (no pulsing) the hall  sensor is likely defective. Disconnect power by
unplugging washer and ohm check hall sensor to verify failure of the hall sensor.

The hall sensor determines the speed and direction of the motor. 
It also can read that the load is off balance when the drum speed fluctuates.

(1)

(2)

(3)

(4)

(5)

Result

3 M

Ω ↑

3 M

Ω ↑

9 k

Ω ↑

9 k

Ω ↑

Test Points

(1) To (4)

(2) To (4)

(1) To (5)

(2) To (5)

Remarks

Resistance

Resistance

Resistance

Resistance

1. Unplug power cord.
2. Remove rear panel.
3. Remove Washer Top.
4. Remove Main PCB Assembly cover as shown in Figure below.
5. Locate the Blue Hall Sensor 6 wire connector using wiring diagram wire colors as your guide.
6. Plug in power cord, close door, and press power button. DO NOT  PRESS START!
7. Place meter leads on White & Gray wires. You should read 10 to 15 Vdc  output from the Main

PCB Assembly to the Hall sensor. If no 10 to 15 Vdc is  measured the control board is defective.

8. Place meters leads on Blue to Yellow. Turn motor rotor slowly by hand. You should measure a

pulsing 10 Vdc. Place meter leads on Red to Yellow. Turn motor rotor slowly by hand. You should
measure a pulsing 10 Vdc. If both tests measure a pulsing 10 Vdc, hall sensor and harness OK. If
either or both tests measures 9 to 10 volts, but does not pulse or change, Hall sensor has failed
and must be replaced. IF zero (0) voltage is measured on either test, check red & blue wires for
continuity. Repair or replace harness as needed. 

Result

8-12 k

Ω

8-12 k

Ω

10-15 Vdc

10 Vdc

10 Vdc

Test Points

(1) to (2)

(1) to (3)

(1) to (6)

(2) to (6)

(3) to (6)

Remarks

Voltage Input

Pulsing Signal

Pulsing Signal

(1)

(2)

(3)

(6)

(1)

(2)

Result

10.9 

Ω±5%

Remarks

Resistance

Test Points

(1) to (2)