Samsung 4C Error Code | Fast & Reliable Repair

Error Code Explained

What Does the Samsung 4C Error Code Mean?

The 4C error code on a Samsung dishwasher indicates a water supply fault — the machine is not receiving enough water within the required fill time. Samsung dishwashers monitor fill time via a flow sensor or pressure switch. If the minimum water level is not reached within approximately 4 minutes, 4C is triggered and the cycle halts.

In most cases, 4C is caused by a closed water supply valve, a kinked inlet hose, or a clogged inlet valve screen — all straightforward checks before calling for service.

Root Causes

Common Causes of the Samsung 4C Error Code

1

Water Supply Valve Closed or Partially Closed

The dishwasher water supply valve (under the sink) is not fully open. Check it is turned counter-clockwise as far as possible.
2

Kinked Inlet Hose

The water supply hose from the valve to the dishwasher inlet has kinked — commonly when the dishwasher is pushed back under the counter after installation.
3

Clogged Inlet Valve Screen

The small mesh screen inside the inlet valve connection can collect debris from the household water supply, restricting flow.
4

Low Water Pressure

The household water pressure is insufficient. Dishwashers require 20–120 PSI. Check if other fixtures in the home also have low flow.
5

Failed Water Inlet Valve

The solenoid inlet valve has failed and does not open when powered. This requires valve replacement.

Step-by-Step Guide

How to Troubleshoot the 4C Error Code

⚠️

Safety First: Always disconnect the Dishwasher from power before inspecting any internal components. Do not attempt electrical repairs. If in doubt, call a certified technician.

1

Check and open the water supply valve

Open the cabinet beneath the kitchen sink and locate the hot water supply valve for the dishwasher. Ensure it is fully open (turned counter-clockwise as far as possible).
2

Inspect the inlet hose

Pull the dishwasher out slightly (or access through the cabinet kick plate) and inspect the water inlet hose for kinks. Straighten any kinks and restore the dishwasher position without re-kinking the hose.
3

Clean the inlet screen

Turn off the water supply valve. Disconnect the inlet hose from the back of the dishwasher. Look inside the inlet port for the small mesh screen. Remove, rinse clean, and reinstall.

Professional Service

When to Call a Samsung Technician

⚠ Stop DIY if any of these apply

If all checks above are completed and 4C persists, the inlet valve solenoid has failed and needs professional replacement. This is a 30-45 minute repair requiring the correct Samsung valve part number for your model.

Estimated Repair Cost

$100 – $210

Exact quote before any work begins. No surprises.

📞 844-739-1647

FAQ

Frequently Asked Questions — Samsung 4C

Yes — plumbing work often dislodges debris that then catches in the dishwasher inlet screen. After restoring household water supply, clean the inlet screen at the back of the dishwasher. Also run a test fill to confirm full flow.
Over years of use, mineral scale from hard water can coat the inlet valve solenoid core and restrict its range of motion. In very hard water areas, inlet valve failure happens sooner than average. A whole-house water softener extends appliance valve life.
No — 4C halts the cycle before the wash phase begins. Dishes remain dirty but undamaged. Simply resolve the water supply issue and restart the cycle.

Book a Samsung Dishwasher Repair Appointment

Samsung specialist available same-day. We'll call within 60 minutes to confirm.

Free Diagnosis Estimate
30-Day Warranty
No Hidden Fees
Same-Day Service Available

Your information is secure. We never share or sell your data.