Jeff for Model Number wfw9400sw00 I have replaced both the flow meter and then after asking about my situation replaced the level/pressure switch. The diagnostic test still shuts down the machine during or at the end of c03. A load of laundry also still causes an "F-20" error msg. What else could be causing the f-20 and the shut down during the c03 filling part of the test?
Answer Jeff, You will want to check the screens of the water valve to make sure that they are not plugged up. Check to make sure that the unit is not siphoning which you would want to make sure that the drain is not too far into the standpipe. Also check to make sure that you are getting power to the water valve to activate fill. If all of this checks ok with the installation of a new pressure switch and flow meter then the only other cause would be a bad control board. Read More... Answered by AppliancePartsPros.com | Wednesday, April 24, 2013