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Samsung Washer 4C Code: Not Filling

Updated

Short answer

Samsung says 4C (nF, 4E) on a washer means water is not entering the washer correctly (a not filling error). Samsung's first step: make sure both supply hoses are connected to the correct inlets, hot to hot and cold to cold, and are not bent or kinked. Samsung says not to use Flood Safe hoses. If the code continues, Samsung says to request service. A washer water inlet valve runs $120 to $250 (2026 cost guide).

What 4C (nF, 4E) means

In Samsung's words, condensed: water is not entering the washer correctly (a not filling error) (Samsung).

What Samsung says to try

  1. Make sure both supply hoses are connected to the correct inlets, hot to hot and cold to cold, and are not bent or kinked. Samsung says not to use Flood Safe hoses.
  2. Open both water valves completely and leave them open while the washer runs.
  3. Check the drain hose is inserted no less than 6 and no more than 8 inches into the drain pipe and is not kinked.
  4. Unplug the washer or flip its breaker for 1 minute, then restore power and run a cycle.
  5. If debris may be blocking the inlets, turn the supply valves off and check the inlet filters.

Unplug the appliance or switch off its breaker before reaching into any part of it. Codes and steps vary by model, so check your manual too.

If the code comes back

If the code continues, Samsung says to request service. A washer water inlet valve runs $120 to $250. (Angi, washing machine repair cost (updated Jul 31, 2026))

Samsung notes the inlet filters catch dirt and debris from the water supply. Water across Winnebago and Boone counties is very hard; see your town's number in the hardness table and what it does to appliances in hard water and appliances.

Related

All Samsung codes on one page: Samsung appliance repair. The appliance: washer repair. This site is independent and not affiliated with or authorized by Samsung; if the appliance is under warranty, contact Samsung first.

Quick answers

What does 4C (nF, 4E) mean on a Samsung washer?

Samsung says it means water is not entering the washer correctly (a not filling error).

How do I clear 4C (nF, 4E)?

Samsung's steps: Make sure both supply hoses are connected to the correct inlets, hot to hot and cold to cold, and are not bent or kinked. Samsung says not to use Flood Safe hoses. Open both water valves completely and leave them open while the washer runs. Check the drain hose is inserted no less than 6 and no more than 8 inches into the drain pipe and is not kinked. Unplug the washer or flip its breaker for 1 minute, then restore power and run a cycle. If debris may be blocking the inlets, turn the supply valves off and check the inlet filters.

What does it cost if 4C (nF, 4E) keeps coming back?

If the code continues, Samsung says to request service. A washer water inlet valve runs $120 to $250.

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