TOUCHPAD/LED ASSEMBLY
The Touchpad/LED Assembly is removed as a single assembly and is connected to the Cen- tral Control Unit by a ribbon cable. This assem- bly contains all of the buttons, LEDs and ribbon cable and printed circuit boards for the user to operate the washer. This interfaces the con- sumer inputs to the Central Control Unit.
Ribbon Cable
Touchpad/LED
Assembly
CENTRAL CONTROL UNIT (CCU)
The Central Control Unit is located at the top rear of the washer and is enclosed in a control box. There are no serviceable parts inside the control box. If diagnostic tests indicate any component of the CCU is defective, the entire control box must be replaced.
The CCU receives input from the touchpad/ LED assembly and directly controls the dis- penser, drain pump, water inlet valves, door locking and unlocking solenoids, and heating element relay. The CCU monitors the pressure switch, flowmeter, temperature sensor and door lock switches.
The CCU sends the customer selection input to the Motor Control Unit for proper motor opera- tion.
Central Control Unit
MOTOR CONTROL UNIT (MCU)
The Motor Control Unit is located inside a plastic control box located in the lower front corner of the washer cabinet. The control box is shown with the access door open.
The MCU operates the drive motor at varying speeds and direction based on inputs received by the CCU to complete the cycle selected. The MCU also monitors a tachometer on the motor to confirm that the drive motor is operat- ing at the proper speed and direction.
Motor Control Unit
DRIVE MOTOR
The drive motor is a
Drive Motor
