Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error code4C / 4E
ApplianceDishwasher
Quick answer
4C is a water supply error: not enough water pressure or temperature. Check the valve, the supply and the inlet line.
Model compatibility: Samsung reuses codes across series and model years, so 4C / 4E may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
4C is a water supply error: the dishwasher is not getting water at the pressure or temperature it needs.
4C, also shown as 4E, is a water supply error. Samsung’s US guide says the dishwasher is not getting water at the pressure or temperature it needs, and points owners to its dishwasher water supply requirements guide. The Australian, UAE and India listings add simple checks.
Checks from Samsung
Check whether the water supply valve is closed or not fully open.
Check whether the water supply has been suspended, for example by maintenance or utility issues.
Check the water inlet valve and hose or line for freezing or blockages from foreign objects.
Samsung’s India page counts 4E among the codes caused by installation problems, specifically a supply valve that is closed or not fully open.
Related dishwasher codes
4C5 describes a dishwasher that starts to fill and then stops with a dry tub, and 3E is about incoming water that is too hot.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
