Samsung Dishwasher 4C Error Code: What It Means & What to Check

Q: My Samsung dishwasher shows 4C. What does that mean?

A: On many Samsung dishwashers, 4C (sometimes related to 4E on some references) usually points to a water supply / fill problem. In plain English, the dishwasher is not getting the incoming water it expects. Exact meaning and code display can vary by model/series, so confirm with your model tag and owner manual if behavior differs.

What This Code Usually Means

On many Samsung dishwasher model families, 4C indicates a water supply issue such as no water, low flow, restricted inlet, or a water valve problem. Exact wording and related code variants can vary by model/series, so check the model tag and user manual if your display or symptoms differ.

What You May Notice

• Dishwasher starts, then stops early
• Little or no water entering the tub
• Beeping and 4C code display
• Cycle will not continue after initial fill attempt
• Intermittent issue depending on water pressure or valve position

Safety First

• Turn off power before checking supply connections.
• Turn off the water supply valve before removing or inspecting hoses.
• Use caution around electrical parts and standing water.
• Do not force fittings or overtighten plastic connections.
• Stop if you notice damaged wiring, burning smell, or leaking at the valve.

Quick Checks You Can Try

• Confirm water supply valve is open: Make sure the dishwasher supply valve under the sink is fully open.
• Check supply hose for kinks: Straighten any bent or pinched inlet hose.
• Check inlet screen/filter: Shut off water and inspect the inlet screen for debris/sediment buildup.
• Confirm household water supply: If there was recent plumbing work or pressure issues, flow may be reduced.
• Power reset: Turn power off briefly, then retry a cycle.
• Watch the fill stage: Listen for water entering and stop if leaking occurs.

Common Causes and Likely Parts

• Most common causes:
  • Closed or partially closed water supply valve
  • Kinked/folded water supply hose
  • Clogged inlet screen or sediment restriction
  • Low incoming water pressure
• Less common causes:
  • Faulty water inlet valve
  • Wiring issue to inlet valve
  • Water level sensing issue (model-dependent)
  • Main control board issue (less common)
• Likely parts (if applicable):
  • Water inlet valve
  • Inlet hose / fittings
  • Inlet screen/filter
  • Wiring harness / connectors
  • Water level sensor components (model-dependent)

Not usually a part failure: 4C is often caused by water supply setup, restriction, or pressure issues.

When to Call Beacon

• 4C returns after checking valve position, hose, and inlet screen
• The dishwasher gets no water or fills inconsistently
• You suspect a faulty inlet valve
• The code repeats after resets
• You want proper diagnosis before replacing parts

Our friendly technicians in yellow can test fill operation, verify water flow and valve function, and pinpoint whether the issue is supply-related or a failed component.

Request Service
(352) 726-7530
www.BeaconSaves.com