What does Samsung Dishwasher 3C Error Code - Causes & Fix mean?

3C means the wash circulation pump is not running right. Check for a jammed impeller and debris first, then test the pump motor.

How do I fix Samsung Dishwasher 3C Error Code - Causes & Fix?

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 3C Error Code - Causes & Fix?

The most frequently replaced parts for Samsung Dishwasher 3C Error Code - Causes & Fix 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 3C Error Code - Causes & Fix 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 3C Error Code - Causes & Fix

Samsung Dishwasher 3C Error Code — What It Means

The 3C code is a pump fault on the wash side. The circulation pump that drives water up to the spray arms is not turning as the control expects.

Debris in the pump is the easiest cause to rule out, but a 3C that returns after cleaning usually means the circulation pump motor itself has failed.

Jump to Fix

Common Causes

Debris in the pump impeller Glass, seeds, or hard food jam the circulation impeller so it cannot spin.
Failed circulation pump motor A burned-out or seized wash pump motor will not run even with a clear path.
Loose pump wiring A loose or corroded connector at the pump drops power and trips the fault.
Clogged filter restricting flow A packed filter starves the pump and makes it labor or stall.
Trapped air or low water A pump running dry or air-bound cannot build flow and posts the fault.
Control board fault A board that cannot drive or read the pump can report 3C with a good pump.

Step-by-Step Fix

Cancel the cycle, disconnect power, and remove the bottom rack and filter.
Clear standing water, then check the sump and circulation pump intake for glass or debris.
Spin the impeller by hand if you can reach it and confirm it turns freely.
Reseat the pump wiring connector and look for corrosion or burnt pins.
Reset the dishwasher and run a short cycle to listen for the wash pump running.
If the pump stays silent with power present, test the motor windings with a multimeter.
Replace the circulation pump if it reads open or shorted, then retest the cycle.

Parts Often Needed

Part	Notes
Samsung dishwasher circulation pump	Amazon \| Match the wash pump to your model, since connector and wattage differ.
Dishwasher filter assembly	Amazon \| Replace if the mesh is torn so debris keeps reaching the pump.
Pump wiring connector	Amazon \| Only if the existing connector is corroded or burnt.

When to Call a Pro

If the impeller is clear and the pump tests good but 3C keeps coming back, the control board may not be driving the pump correctly. A technician can confirm power to the pump and rule the board in or out before you buy a new pump.