My washer (Whirlpool Duet WFW9600TA00) displays the code f27 and the drain pump runs almost all the time that the washer is plugged in. Also I get code f99. I have checked the drain pump filter and it is clear, I have blown through the lines at the drain and level switch. I have also made sure that the connectors are seated. I have tried to do the automatic test but it will not go past c00. I replaced the water level sensor today and now can't get past f99
Any ideas on how and what to test or replace next?
Any help would be greatly appreciated