How to Replace EAU62043403 Drain Pump Motor Assembly on LG Dishwashers — Step-by-Step

You load the dishwasher, run a full cycle, and come back to find standing water at the bottom. The dishes are clean but soaking in dirty water that refuses to drain. If your LG dishwasher — models like the LDF7774ST, LDT9965BD, or LDS5774ST — won't pump out water, the drain pump motor assembly is usually the culprit. The good news? This repair is straightforward if you follow the right steps.

What You Need Before Starting

This is a moderate-difficulty repair that takes about 45 minutes once you have the dishwasher pulled out. Here's what you'll need:

• Phillips head screwdriver
• Flathead screwdriver
• Needle-nose pliers
• Towels (for water cleanup)
• Shallow pan or bowl
• Work gloves

Repair Time: 45-60 minutes
Difficulty: MODERATE

Safety First

Unplug the dishwasher from the wall outlet or shut off the circuit breaker. There's standing water involved, and you'll be working near electrical connections. Also, you'll need to turn off the water supply valve under the sink before you start. There will be some residual water in the pump housing, so keep those towels handy.

Step 1: Pull Out the Dishwasher and Access the Base

Remove the two screws securing the kickplate at the bottom front of the dishwasher. Pull it off. Now open the door and locate the mounting screws on the sides that secure the unit to the counter. Remove these screws. Carefully pull the dishwasher forward — you'll need about two feet of clearance to work. Disconnect the water supply line at the valve connection.

Step 2: Tip the Dishwasher and Remove the Base Cover

With help, gently tip the dishwasher backward so it's resting at about a 45-degree angle against your legs or a sturdy support. You'll see the black plastic base cover underneath. Remove the screws holding this cover in place (usually 6-8 screws around the perimeter). Set the base cover aside. Now you can see the pump assembly, drain hose, and wiring.

Step 3: Disconnect the Old Drain Pump

Take a photo of the wire connections before you disconnect anything — this'll save you headaches during reassembly. Unplug the wire harness from the pump motor. Using your pliers, squeeze the hose clamps on both the inlet and outlet hoses and slide them back. Twist and pull the hoses off the pump — water will drip out, so have your pan ready. Remove the screws or clips securing the pump bracket to the dishwasher base, then lift the entire pump assembly out.

Step 4: Install the New EAU62043403 Pump Assembly

Position the new pump assembly in the same orientation as the old one. Secure it with the mounting screws or clips. Push the inlet and outlet hoses firmly onto the new pump's barbed fittings — you should feel them seat completely. Slide the hose clamps back into position about a half-inch from the end of each hose. Reconnect the wire harness, making sure it clicks into place. Give each connection a gentle tug to verify it's secure.

Step 5: Reassemble and Test

Reattach the base cover with all its screws. Carefully lower the dishwasher back to its upright position. Slide it back into place, but don't secure it yet. Reconnect the water supply line and turn the water back on. Plug in the power. Run a quick rinse cycle and watch underneath for any leaks. If everything's dry after five minutes, you're golden. Secure the dishwasher to the countertop and reinstall the kickplate.

Testing After Installation

Run a full wash cycle and listen for the pump to activate during the drain phase. It should hum briefly, then you'll hear water rushing through the drain hose. Open the door mid-cycle (after the wash phase) and check that the sump is empty. If water's gone and there are no leaks underneath, your repair is successful. The pump should operate quietly — if you hear grinding or excessive noise, double-check that the hoses aren't kinked.

Frequently Asked Questions

Will this pump work on Kenmore dishwashers too?

Yes, this is a direct replacement for several Kenmore Elite models including 72214697610 and 72214693610. LG manufactures dishwashers for Kenmore, so the parts are identical. Just verify your model number against the compatibility list to be certain.

How do I know if it's the pump or just a clog?

Before replacing the pump, check for clogs first. Remove the filter assembly inside the dishwasher tub and look down into the sump area. Clear any debris. If the pump hums but doesn't drain, or makes no sound at all when it should be draining, the motor itself has failed and needs replacement.

Can I replace just the motor and keep the housing?

The EAU62043403 comes as a complete assembly — motor, impeller, and housing together. LG doesn't sell the motor separately because the housing often develops cracks or warping that contribute to drain failures. Replacing the entire assembly ensures a reliable, long-lasting repair.