Motor Drive System Test
To check the system, check the board for proper output to the motor control. This is done by performing a board output check. Then perform the Motor And Motor Control Test.
Machine Control Board Output Test
1.Place the washer into Service Mode. (See Section 2; Accessing Service Mode)
2.LED Washer: Access Board Output Test and press Stain Cycle. This will send a signal to the motor control to operate the motor. This will test the board relay for 120 VAC output to the motor control board. Motor will not operate, because the door is not locked.
LCD Washer: Access Service Tests and press system check. Touch the screen to toggle the motor control on. This will test the board relay for 120 VAC output to the motor control board.
Motor Phases
With the introduction of the sensorless motor, the Motor Phase Test is no longer required. If the motor experiences a phase problem, the motor will not run.
Motor & Motor Control Test
1.Disconnect power to the washer.
2.Remove the front panel and pull the JP4 Connector from the motor control board. (Figure
3.Reconnect the washer power cord to supply voltage.
4.Press Help and Back function to acti- vate Service Mode.
Figure
5.LED Washer: Select Board Output Test; close door or push door acturator button; touch the stain cycle membrane switch.
LCD Washer: Select System Check; close door or push door actuator button: touch Toggle Motor Control
On
6.The motor control will immediately execute a test routine and the motor should run, rotating the spinner at 50 rpm.
7.If the motor runs, and the spinner rotates at the proper RPM speed: the problem lies outside of the motor and motor control circuit. Disconnect power to the washer and reconnect the JP4 Interface connector to the motor control.
If the motor runs, and the spinner does not rotate: Check for missing belt.
8.If the motor does not run:
a. Check the 10 amp fuse located on the control board, either visually or with an ohm meter. If bad, replace motor control/wire harness assembly completely. (Figure
16010486
Revised 02/01 | ©2001 Maytag Appliances Sales Company |
|
