Sheldon for Model Number Thermador DW44ZS/21 Unit fills, cleans and drains and completes cycle but randomly emits mid-tone screech-squeal I think happens during the drain cycle. Is there any “diagnostic cycle” to put a washer in? If you believe that the drain pump to be defective please note proper replacement # for this model, thanks.
Answer Sheldon, You will want to get down in the drain pump and the wash pump to make sure that there is nothing caught in it. This could be the cause of the noise. The other possibility would be if the water valve when filling is making the noise which would require a water valve. Read More... Answered by AppliancePartsPros.com | Monday, December 16, 2019