Samsung Washers2018–present

Error Code 4C

The washer isn't getting water when it needs it

Moderate

Address soon - your appliance may not work properly

Also displayed as: 4C

What This Means

Foreign material entering the water supply valve; Water supply valve terminal is not connected (wire disconnected); Warm water and rinse connectors are wrongly connected to each other; PCB terminal from the drain hose to the detergent drawer is not connected; Transparent hose is folded or torn; Cold and warm water supply hoses are wrongly engaged into each other; Main PBA fault; Water supply blocked due to alien substance in the valve; Frozen water supply

What actually causes this:

The water faucets behind the washer are turned off, or the inlet filter screen is clogged with sediment

First Thing to Check

Make sure both hot and cold water faucets behind the washer are fully open

Parts Involved

Water Supply ValveMain PBAWater Supply Hoses

How to Fix

  1. 1

    1. Measure the resistance of the water supply valve. Resistance: 0.9 kΩ to 1.1 kΩ between the terminals of the Water Supply Valve

  2. 2

    2. Check whether there is foreign material in the Water supply valve filter — take the appropriate countermeasure if a problem is found

  3. 3

    3. Check if the water is supplied to the machine

  4. 4

    4. Check if the water supply is blocked due to frozen water or an alien substance in the valve

  5. 5

    5. If the PBA Relay malfunctions, replace the PBA

This Error Applies To

Samsung WA50M7450A Series Washers (2018) (2018–present)

Service manual exact match: WA50M7450AP/A4Service manual exact match: WA50M7450AW/A4Service manual exact match: WA48H7400AP/A2

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