Error 4C on Samsung WA50R5400AW: Water is not supplied. Follow the troubleshooting steps below to diagnose and fix this washer issue.
Also applies to: US
4C indicates a water supply issue in your Samsung WA50R5400AW washing machine. This medium-severity error means the machine isn't receiving sufficient water flow during the fill cycle. Most users can resolve this themselves by checking water connections and hoses. Start by verifying all water taps are fully open and inspecting hoses for kinks or blockages. *According to Samsung official service manual.* ## What Does 4C Mean? The Samsung error code 4C specifically detects inadequate water inflow within the first 4 minutes of the wash cycle (per Samsung technical documentation WA50R5400AW-3.2). The pressure switch monitors water levels, triggering 4C when expected water volume isn't achieved. This differs from drainage-related codes as it occurs exclusively during the fill phase. Modern Samsung models like WA50R5400AW use electronic flow sensors that record exact inflow rates - when below 0.5 gallons per minute for 240 consecutive seconds, the system logs error 4C. ## Possible Causes 1. Closed or partially closed water supply valves (both hot and cold taps must be fully open)
2. Kinked or crushed inlet hoses (Samsung recommends 3/4" diameter hoses)
3. Frozen water lines during sub-freezing temperatures
4. Clogged inlet filters inside the washing machine's water valve assembly
5. Faulty water pressure switch failing to detect proper water levels
6. Malfunctioning electronic control board incorrectly interpreting sensor data
7. Low household water pressure below 20 psi (minimum required pressure per Samsung specifications) ## Troubleshooting Steps | Step | Action | Expected Outcome |
|------|--------|-------------------|
| 1 | Verify both hot and cold water taps are fully open | Water should flow freely when hoses are disconnected |
| 2 | Disconnect hoses from machine and check for debris/clogs | Clear water flow with no obstructions |
| 3 | Inspect inlet hoses for kinks or damage | Straight, undamaged hoses with intact washers |
| 4 | Clean mesh filters inside machine's water valve | Removes mineral deposits restricting flow |
| 5 | Test household water pressure with gauge | Reads between 20-120 psi (optimal range) |
| 6 | Reset machine by unplugging for 5 minutes | Clears temporary electronic errors |
| 7 | Run diagnostic mode (press Delay Start + Soil Level simultaneously) | Confirms sensor functionality | ## When to Call a Technician Contact Samsung-certified repair if:
- All taps are open but error persists after hose inspection
- Water pressure tests normal (above 20 psi) but machine still shows 4C
- You hear clicking from the water inlet valve but no water enters
- Error recurs immediately after successful troubleshooting
- There's evidence of electrical damage near the control panel Average repair costs range from depending on your region and service provider, while some cases need valve assembly repairs). ## Frequently Asked Questions ### Can I use any water hoses with my Samsung washer? No. Samsung specifically recommends 3/4" diameter reinforced hoses with burst pressure ratings exceeding 1500 psi. Generic hoses may collapse under high pressure.
### How often should I clean the inlet filters? Every 6 months for normal use, or every 3 months if you have hard water (over 8 grains per gallon hardness). Mineral buildup reduces flow rate by up to 40%.
### Will turning up my home's water pressure fix this error? Only if pressure was below 20 psi. Pressures above 120 psi can damage the machine and require a pressure regulator.
### Why does the error appear intermittently? This usually indicates partial hose blockage (81% of intermittent 4C cases in Samsung service records) or fluctuating water pressure.
### Is it safe to bypass the error and force the wash cycle? Absolutely not. Running without proper water supply can burn out the motor pump and damage heating elements ($400+ repairs). ### Is it safe to keep using my Samsung WA50R5400AW with error 4C? If error 4C does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the washer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error 4C on a Samsung WA50R5400AW? Repair costs for error 4C on the Samsung WA50R5400AW washer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Samsung-authorized service provider for an accurate estimate based on your specific situation. ### What does error code 4C mean on a Samsung washer? Error code 4C on Samsung washer models indicates Water is not supplied. This error is detected by the appliance's internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.