Tony for Model Number Bosch WFM6400uc I have a Bosch Washer that keeps giving me a drainage blockage signal only on the last final spin cycle. All prior rinse cycles drain the water into the drain pipe on my wall. I have replaced the drain pump assembly and removed all lines and thoroughly cleaned them. Once the drainage blockage signal shows on the control panel the washer just beeps and the washer does not go through its final cycle. What is causing this "Drainage Blockage" signal to appear only on the final cycle? I have picked up the discharge tube during the prior drainage cycles and the discharge hose is clearly dispensing the water. I am stumped? It is there a problem with the control panel causing this drainage blockage error only on the final cycle? The washer washes cloths fine but clearly there is no drainage blockage due to prior drainage cycles working?
Answer Tony, This issue would sound likely that the pressure switch is not resetting allowing the unit to proceed. Check the pressure hose to make sure it is not blocked. If this checks ok then the issue will most likely be a faulty control board. Read More... Answered by AppliancePartsPros.com | Wednesday, June 6, 2018