Help with whirlpool FH Code

[battlhamr]

Okay, I need help. I own a Whirlpool duet front loading washer, Model Number GHW9150PW4. Originally I was getting the F11 code. I replaced both the Central Control Unit and the Motor Control Unit. I ran the diagnostic test and now getting the FH code. I went through all the things you are supposed to do according to the diagnostic sheet found in plastic in bottom of washer, including cleaning the intake screens and making sure the drain hose was clear. When I do the diagnostic test water runs into the drum but 60 seconds into the test I get the FH code. I drain the water and it drains fully with no issues. I have run the diagnostic test and even tried several times on different wash cycles and every time at the 60 second mark I get the beeping and the FH code. I changed the hose that connects to the pressure switch and again 60 second and the FH code. I replaced the pressure switch today an again 60 seconds and the FH code. I have done all the electrical testing and everything seems okay. I am at a loss. Please help. The only thing I can think of to do now is to change the intake valve but I think that would be foolish since plenty of water flows into the drum for the 60 seconds it takes to get the FH code. Again, the drains, pump and motor are all working fine. This model does not have a Flow Meter so I can’t change that. I sure hope someone can help me with this issue. Thank you.