Agnes C Rogersville , TN August 28, 2017 Appliance: Samsung Dishwasher DMR78AHS/XAA-0000 Samsung Dishwasher Dmr78ahs/Xaa-0000 / : The top nozzle in my dishwasher kept popping off. How to replace Dishwasher Upper Nozzle Holder. I finally decided to look for the part. When I found the part on your site I found out it was two different parts not the one big one I thought it was. I was glad because I was not sure how to get the other part off. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes