How to Replace DD82-01121B Upper Rack Adjuster Assembly on Samsung Dishwasher — Step-by-Step

You load the top rack, slide it closed, and hear that grinding noise again. Or worse—the upper rack won't adjust up or down anymore, leaving you stuck with tall glasses blocking the spray arm. When the upper rack adjuster fails on Samsung dishwashers like the DMT800RHB/XAA or DMT610RHS/XAC, you'll know it immediately. The rack either won't stay in position, drops unexpectedly, or refuses to move at all.

The DD82-01121B adjuster assembly (also replaces AP5736133, DD97-00119B, and PS8690520) is the mechanism that lets you raise and lower your dishwasher's top rack. It's a purely mechanical fix that doesn't require any electrical work—just patience and the right approach.

What You Need Before Starting

• Flathead screwdriver
• Phillips head screwdriver
• Needle-nose pliers
• Clean towel or mat (to protect countertop)
• Small container for screws

Estimated Time: 20-30 minutes
Difficulty: Medium

Safety First

Disconnect power to your dishwasher before starting—either unplug it or flip the breaker. You'll be pulling the upper rack completely out, so clear some counter space. These adjusters have spring-loaded components that can snap if released improperly, so keep your face clear when removing retaining clips.

Step 1: Remove the Upper Rack Assembly

Pull the upper rack out about halfway. Look at both sides where the rack meets the rails—you'll see the adjuster mechanisms. Most Samsung models let you lift the entire rack straight up and off the rails once it's extended. If yours has locking tabs, press them inward while lifting. Set the rack on your protected counter space.

Step 2: Locate and Remove the Failed Adjuster

The adjuster assembly sits on each side of the rack, usually held by two or three Phillips screws and a retaining clip. You'll see a toothed wheel mechanism that's probably cracked or stripped—that's your problem. Remove the screws first, then use your flathead screwdriver to carefully pry the retaining clip away. Keep tension controlled; that spring inside wants to pop free.

Step 3: Disconnect the Rack Tine Rows

Before the adjuster comes completely free, you'll need to detach the tine rows it's connected to. Look for small plastic tabs or clips holding the tines to the adjuster bracket. Press these tabs inward with your needle-nose pliers while gently pulling the tine row away. On models like the DMT800RHS/XAA, there's usually one connection point per adjuster. Don't force it—if it's not releasing, you're missing a clip.

Step 4: Install the New DD82-01121B Adjuster

Position your new adjuster exactly where the old one sat. Reconnect the tine rows first—you should hear or feel them click into place. Then align the screw holes and hand-thread each screw before tightening. Once screws are snug, snap the retaining clip back into position. Test the adjustment mechanism by hand—it should move smoothly through all positions with a satisfying click at each height setting.

Step 5: Reinstall the Upper Rack

Lift the rack assembly and align it with the rails inside your dishwasher. If your Samsung has the lift-and-drop style, position it above the rails and lower straight down until it seats. For slide-in types, angle the back slightly and guide it onto the rear rail catches first, then lower the front. Slide the rack in and out a few times, testing the adjustment lever at different positions. It should hold firm at every setting.

Testing After Installation

Load some dishes in the top rack—especially taller items that require the lower position. Run the dishwasher through a short cycle and check that the rack stays put during operation. Listen for any rattling or grinding that would indicate misalignment. After the cycle, test the adjuster again to confirm it still moves freely and locks securely.

Frequently Asked Questions

Will this adjuster fit both sides of my Samsung dishwasher?

You'll need two assemblies for a complete repair—one for each side. The DD82-01121B is sold individually. Most failures happen on both sides within months of each other, so consider replacing both even if only one is currently broken.

Why does the adjuster keep breaking on my dishwasher?

Overloading the top rack is the main killer. The adjuster mechanism isn't designed to support heavy cast iron or stoneware. Stick to lighter items up top—plates, cups, and plastic containers. Also, forcing the adjustment lever when the rack is fully loaded puts excess stress on the plastic teeth.

Can I adjust the rack height without the lever working?

Technically yes, but you'd need to manually move the rack and hope it catches in a position. That's not a long-term solution—you'll eventually damage the rails themselves. At $70.99 for the genuine Samsung part, it's worth fixing properly rather than risking a $300 rail replacement down the road.