How do I fix Samsung Dishwasher Drain Pump Replacement - Signs & How-To?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Samsung Dishwasher Drain Pump Replacement - Signs & How-To?

The most frequently replaced parts for Samsung Dishwasher Drain Pump Replacement - Signs & How-To are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Samsung Dishwasher Drain Pump Replacement - Signs & How-To a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Samsung Dishwasher Drain Pump Replacement - Signs & How-To

Q: What does Samsung Dishwasher Drain Pump Replacement - Signs & How-To mean?

Water won't drain, 5C/5E/OC/OE error codes, standing water after cycle, or grinding noise mean a failed drain pump. Replacing it fixes drainage.

Samsung Dishwasher Drain Pump Replacement — What This Part Does

The drain pump assembly evacuates water from the dishwasher tub at the end of each cycle and during drain phases. It contains the pump motor, impeller, and housing that together move water through the drain hose and into your sink drain or garbage disposal. Samsung groups drain pump failures under error codes 5C, 5E, OC, and OE, which all indicate a drain or overflow problem.

The pump fails when the impeller becomes jammed with debris, when the motor windings burn out, when impeller blades crack or wear down, or when the pump housing cracks and leaks. Electrical connector problems at the pump terminals can also prevent operation. Over time normal wear, hard water deposits, and food particles that slip past the filter can damage the pump internals and stop it from moving water out of the tub.

Jump to Replacement Steps

Signs It Needs Replacing

Standing water in the tub after a cycle completes The dishwasher finishes its program but water remains pooled at the bottom instead of draining out.
Error codes 5C, 5E, OC, or OE on the display Samsung uses these codes to flag a drain or overflow error when the machine detects water is not evacuating properly.
Grinding, humming, or buzzing noise during drain phase The pump motor tries to run but the impeller is jammed, worn, or the motor itself has failed.
Dishwasher cycle stops mid-program and won’t advance The control halts the cycle because it senses the drain pump is not removing water as expected.
Water leaks from under the dishwasher near the front A cracked pump body or loose housing seal allows water to escape during the drain cycle.
Drain pump runs but water drains very slowly or not at all The impeller blades are damaged or broken so the pump cannot generate enough pressure to push water through the hose.

How to Replace It

Disconnect power at the plug or breaker and turn off the water supply valve under the sink.
Remove the lower dish rack and pull the dishwasher forward from the cabinet to access the bottom panels.
Disconnect the drain hose from the pump outlet and have a towel ready to catch residual water.
Remove the lower access panel or cover to expose the drain pump assembly at the base of the tub.
Disconnect the pump electrical connectors by pressing the release tabs and pulling the harness plugs free.
Rotate the pump counterclockwise (or as directed by the locking tabs) to unlock it from the sump, then lift it out.
Inspect the new pump impeller to confirm the blades are intact and the impeller turns with resistance but does not spin freely.
Insert the new drain pump assembly into the sump opening, align the tabs, and rotate clockwise to lock it into place.
Reconnect the electrical harness connectors firmly until they click, then reattach the drain hose to the pump outlet.
Reinstall the lower access panel, slide the dishwasher back into the cabinet, restore water and power, and run a test cycle to verify drainage and check for leaks.

The Part You Need

Part	Notes
Samsung Dishwasher Drain Pump Assembly	Amazon \| Part number DD81-02635A fits many models. Check the model and serial number plate inside the door edge or on the tub rim to verify your exact part number on Samsung’s parts site or your parts supplier.

If this part is failing you may also see one of these codes:

When to Call a Pro

Call a technician if you have confirmed the drain hose and sink drain are clear but the dishwasher still shows drain errors after pump replacement, or if you find water leaking from areas other than the pump. Also call for help if you are not comfortable working with electrical connections or if the dishwasher is still under warranty, since self-repair may void coverage. If the new pump runs but water still will not drain and the impeller spins freely without resistance, the issue may be a control board fault or wiring problem that requires diagnostic tools and factory service data.