When I run the diagnostics, it will flash F then H then goes back to time 002. The CCU seems to be making a hissing noise. When I unplug the CCU it will quit. I do not hear any click like it says I am suppose to hear. I want to make sure it is the CCU before getting one they are costly.
Answer Daedge2, The "FH" error code indicates that the washer isn't filling with water properly or the water level switch is not "tripping" between empty and full. The lack of cold water could be the issue, and causes the diagnostics to stop at the 002 segment of the test mode as well as the hissing noise. When power to the CCU is first established, there may be a "faint" click noise from the board itself. it can be very faint and may not be heard. But the fact that the control can be programmed, tested and display works, tells you the line relay closes and the board operates. You would want to recheck all the diagnostic codes, check the fill valve and water supply to the washer, and the water level switch and air tube, before you replace any other parts.
I have a duet washer that I keep getting a F02 error code. I have checked drain hose, replaced pump. I had a repairman check unit and he suggested replacing motor control unit. The error occurs just prior to spin cycle.
With checking the pump and the drain hose, since they are clear and you have a new pump, you would want to check to make sure that the wire connections are not bad. If they check ok then the control board would be the most likely cause.
Keep getting error code f28. Can't get anyone to tell me what it means or how to fix it. If you can help me with this code I would greatly appreciated it thank you
The F28 error code indicates a serial communication error between the Central Control unit (CCU) and Motor Control Unit (MCU). Possible causes and procedure, Unplug washer or disconnect power. Check the wire harness connections to the MCU, the motor, and the CCU. Check connections of the CCU board within the housing. Make sure that all grounding switches are engaged. Check the drive system for any worn or failed components. Plug in the washer or reconnect power. Verify CCU operation by running a Diagnostic test or any cycle. Check the MCU by looking for operations of the drive motor. Check the drive motor for powered rotations and 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. Look for corrosion on the wires and clean with alcohol where necessary.