Dishwashers · error codes
Samsung dishwasher 4C or 4E code: water-supply checks
Samsung groups dishwasher 4C and 4E with water-supply trouble, including supply pressure or temperature. Check the exact model and recent plumbing history first. Installation requirements help an installer assess the supply; they are not instructions for an owner to change the water heater.
Safety boundary
- Stop use for active leaks. Shut off an accessible water supply only if safe; keep away from wet electrical connections.
- Owner checks are limited to visible observations and components explicitly user-accessible in the exact model manual. Do not remove panels, dry a base pan, bypass a sensor or test live wiring.
The dishwasher detects a problem with its water supply, including pressure or temperature conditions.
Samsung US dishwashers whose model documentation lists 4C or 4E; washing-machine code meanings and procedures are outside this page.Checks in order
- 01
Photograph 4C/4E and record the full dishwasher model and any recent installation or plumbing changes.
- 02
Confirm household water availability and observe the accessible supply shutoff and visible inlet hose, using the exact model instructions.
- 03
Give the installer the model's supply requirements. Do not increase pressure, change water-heater settings or disconnect the hose as an owner troubleshooting shortcut.
- 04
If the supply checks do not explain the alert, request model-specific service. The code does not justify ordering an inlet valve without diagnosis.
What pressure and temperature does Samsung publish?
Samsung's US installation reference specifies hot water at 120–149°F and supply pressure of 20–120 psi. The exact model installation manual governs applicability. These figures are a reference for qualified installation review; do not perform hot-water testing or pressure adjustments from this page.
Is 4C a leak code or a drain code?
In Samsung's dishwasher code list, 4C/4E concerns supply. LC/LE is the leak-alert group, and 5C/SC/5E/SE concerns drainage. Identify the actual display before selecting a path; the meanings are not interchangeable across brands or appliance types.