The communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly. Panne de communication entre le module de commande central et le module de commande du moteur. Possible Causes/Procedure 1. Unplug washer or disconnect power. 2. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU). - Check connections of the CCU board within the housing. - Make sure all grounding switches are engaged. 3. Check the drive system for any worn or failed components. 4. Plug in washer or reconnect power. 5. Verify CCU operation by running a Diagnostic Test or any cycle. 6. Check the MCU by looking for operations of the drive motor. 7. Check the drive motor for powered rotations. 8. Check that the serial harness at the MCU is not mounted upside down. The wires should be to the left when facing the MCU connectors.
The Code 28 error is one of several Device Manager error codes. The Code 28 error will almost always display exactly like this:
"The drivers for this device are not installed. (Code 28)"
Details on Device Manager error codes like Code 28 are available in the Device Status area in the device's properties: How to View a Device's Status in Device Manager.
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