How to Replace DD93-01013A Circulation Pump Motor on Samsung Dishwasher — Step-by-Step

Your Samsung dishwasher finishes its cycle, but when you open the door, there's still standing water in the bottom. You run it again — same thing. Or maybe it's draining, but taking forever, and you're hearing a grinding noise that wasn't there before. That's your circulation pump motor giving up, and on models like the DW80M9550US or DW80R7060UG, the DD93-01013A BLDC motor is the culprit about 80% of the time.

This isn't a quick ten-minute fix, but it's absolutely doable if you're comfortable working under your dishwasher and dealing with some water spillage. The trickiest part? Getting the dishwasher tipped back safely and accessing that pump assembly from below.

What You Need Before Starting

• Phillips head screwdriver
• Flathead screwdriver
• Towels (you'll have residual water)
• Shallow pan or bowl
• Work gloves
• Flashlight or headlamp

Estimated Time: 45-60 minutes
Difficulty: Intermediate

Safety First

Shut off power at the circuit breaker — not just the dishwasher's control panel. Samsung dishwashers maintain voltage even when "off" for the control board. Turn off the water supply valve under your sink as well. You'll be working underneath the unit, so make sure you've got enough clearance and the dishwasher can't tip forward on you. If it's secured to countertops, you may need to loosen mounting brackets.

Step 1: Access the Bottom of the Dishwasher

Pull the bottom dish rack out completely. Remove the spray arm by twisting it counterclockwise — it just unscrews. Next, take out the filter assembly. You'll see the sump cover held by three or four screws. Remove those screws and lift the cover straight up. Now you need to access the pump from below, which means either removing the entire dishwasher or carefully tipping it back.

Step 2: Disconnect and Remove the Old Pump Motor

Once you're under the dishwasher, locate the circulation pump — it's the larger cylindrical component with wires running to it. Disconnect the wire harness by pressing the tab and pulling straight out. There are typically three mounting screws or clips holding the pump motor to the sump housing. On models like the DW80M9990US and DW80R9950UG, these are Phillips head screws accessed from underneath. Remove them and gently twist the motor counterclockwise about a quarter turn to release it from the housing. Have your towel ready — water will drip out.

Step 3: Prepare and Install the New DD93-01013A Motor

Check the rubber gasket on your new pump motor. It should be seated properly in its groove. If your old motor had any debris or buildup where it connects to the sump, clean that area now with a damp cloth. Line up the new motor with the mounting holes, insert it, and rotate clockwise until it locks into position. You'll feel it seat. Install the mounting screws and tighten them in a star pattern — don't overtighten or you'll crack the plastic housing.

Step 4: Reconnect Everything and Test

Plug the wire harness back into the motor — you'll hear it click. If you tipped the dishwasher back, carefully return it to position. Reinstall the sump cover, making sure it's seated flush before screwing it down. Put the filter assembly back, then the spray arm. Turn the water supply back on and check for leaks around the pump area while the water fills.

Testing After Installation

Run a rinse cycle and listen. The new BLDC motor should be noticeably quieter than your old one. Watch through the cycle and make sure water drains completely at the end. If you still see standing water or hear grinding, double-check that the pump motor is fully seated and the wire connection is secure. On rare occasions, you might also have a clogged drain hose, which this repair won't fix.

Frequently Asked Questions

Will this pump motor fit my Samsung DW80M9550UG model?

Yes, the DD93-01013A is the exact OEM replacement for the DW80M9550UG/AA, DW80M9550US/AA, and related WaterWall series dishwashers. It also replaces part numbers AP6244455 and PS12085715, so if your old motor has either of those numbers, this is your part.

Why is my dishwasher still not draining after replacing the pump?

The circulation pump moves water during wash cycles, but if you're having drain issues specifically, you might also need to check the drain pump (a separate component), the drain hose for kinks, or the air gap if you have one installed. Slow draining with unusual noises during the drain phase can mean the drain pump is failing instead.

Can I replace just the motor without replacing the whole pump assembly?

On the DD93-01013A, the motor is sold as a complete assembly unit because the impeller and motor are calibrated together for the BLDC (brushless DC) system. You're replacing the entire circulation pump motor, not rebuilding individual components. Samsung doesn't sell the motor and impeller separately for this model.