Tony for Model Number WT5170HV OE message - won't drain. Happens towards end of cycle will drain some before end. Pulled apart, checked all hoses. replaced pump assembly and wire harness since 9 years old. Still won't drain when running (will drain fine when off and hose removed). Read about lid switch but 'red lock' always on and it will spin some. Wish good diagnostic test on Main PCB before spending $$. Don't see anything obviously wrong (capacitors, wiring, etc).
Answer Tony, We do not have a tech sheet available for this unit but if you look inside your unit you will locate one inside the cabinet. It sounds likely that the control board is at fault but if you want to test it then you would test at the main control board (locating test points on the wiring diagram) and test for 120 Vac going out to the drain pump. If there is no power then the drain pump will be faulty and will need to be replaced. Read More... Answered by AppliancePartsPros.com | Wednesday, February 3, 2021