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The meaning of the error code and the corrective actions are listed below.
|F/28 || |
Serial Communication Error
Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.
- Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
- Check the Drive system for any worn or failed components
- Check MCU
- Check CCU
- Check Motor
- Check Wire Harness
Basically there is a communications error between the CCU (control board) and the MCU (motor control)
Commonly what will fix this is disconnecting the wire harness from the CCU to the MCU cleaning the plugs then plugging them back in.
The MCU is located behind the panel under the door screwed to the floor near the motor, The CCU is located under the top of the machine, it is the box that has all the wires running to it.
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