Samsung Washing Machine Error 4C: Causes & How to Fix

Before arranging a repair, check the water supply and the accessible parts of the inlet hose. These simple checks can resolve some 4C errors without replacing components. If the code persists, the machine may need further inspection to identify a faulty inlet valve or another water supply problem.

What Samsung Washing Machine Error 4C Means

Samsung washing machines need a steady supply of water to fill the drum and begin washing. When the machine cannot receive enough water within the expected time, it may display the 4C error and interrupt the cycle.

You may hear the machine attempting to fill while little or no water enters the drum. The cycle may pause, take longer than usual, or stop completely.

Common symptoms include:

• The drum does not fill with water.

• The machine takes an unusually long time to start washing.

• The washing cycle stops shortly after starting.

• The 4C code appears repeatedly.

• Water enters the machine slowly or intermittently.

The error does not automatically mean that a component has failed. A closed valve, restricted hose, or interruption in the household water supply can produce similar symptoms.

Samsung Washing Machine Error 4C: Common Causes

Several problems can prevent your washing machine from receiving enough water. Identifying the cause helps you choose the appropriate fix without replacing parts unnecessarily.

1. Closed Water Supply Valve

The washing machine needs an open water supply valve to fill the drum. If the valve is closed or only partially open, water may not enter at the required rate.

This can happen after plumbing work, cleaning behind the appliance, or moving the machine. Check that the dedicated water supply valve is fully open.

If the household water supply is interrupted, restore it before restarting the washing machine.

2. Kinked or Blocked Water Inlet Hose

The inlet hose carries water from the household plumbing to the washing machine. A sharp bend, crushed section, or internal blockage can restrict the flow and trigger the 4C error.

This problem often occurs when the machine is pushed too close to a wall or moved during cleaning. Inspect the accessible hose for bends, crushing, twisting, or visible damage.

A damaged hose should be replaced rather than patched. If the hose is trapped behind the appliance, avoid pulling the machine out forcefully because this could damage the water connections or power cord.

3. Clogged Water Inlet Filter

Many Samsung washing machines have small mesh filters where the water inlet hoses connect to the appliance. These filters catch sediment and debris before they enter the water inlet valve.

Over time, mineral deposits, rust particles, and other impurities can restrict the mesh. The washing machine may then fill slowly or fail to receive enough water to start its cycle.

Cleaning the filter may restore normal water flow. However, accessing it requires shutting off the water supply and disconnecting the appliance from electricity. Follow the instructions for your specific model.

4. Low Household Water Pressure

The washing machine needs adequate water pressure to fill within its programmed time. If the household supply is weak or interrupted, the appliance may display the 4C error even when the inlet hose is clear.

You may notice slow water flow from nearby taps or reduced supply when other fixtures are being used.

Check whether the household water supply is functioning normally. If the pressure remains low, a plumber can investigate the problem.

5. Faulty Water Inlet Valve

The water inlet valve controls the flow of water into the washing machine. When the control system calls for water, the valve opens to allow filling and closes when the required amount has entered.

A defective valve may fail to open fully or stop working altogether. The machine may make a humming sound while little or no water enters the drum.

If the water supply is available, the hose is clear, and the filters are clean, the inlet valve may need professional testing before replacement.

Samsung Washing Machine Error 4C: How to Fix

Try the following solutions in order, starting with the simplest checks. Always disconnect the washing machine from power before handling its water connections.

1. Make Sure the Water Supply Is Turned On

First, confirm that water is available in your home. If nearby taps are dry, the problem may be a temporary interruption in the household supply.

Next, locate the valve supplying the washing machine, usually near the water connection behind the appliance. Check that it is fully open.

Restart the washing machine and select a wash cycle. If the drum begins filling normally, the closed valve may have caused the error. If the code returns, continue with the next checks.

2. Inspect the Water Inlet Hose

Turn off the washing machine and disconnect its power before inspecting accessible connections. Close the water supply valve before handling the hose.

Check the hose for sharp bends, crushing, twisting, or visible damage. Straighten any accessible kink and make sure the hose is not trapped behind the appliance.

Restore the water supply and inspect the connections for leaks before running the machine. Replace a cracked or damaged hose with a suitable replacement.

3. Clean the Water Inlet Filter

If the water supply is normal and the hose is unobstructed, a clogged inlet filter may be restricting water flow.

Follow these steps.

1. Turn off the washing machine and disconnect it from power.

2. Close the water supply valve.

3. Disconnect the inlet hose carefully, keeping a container and towel nearby to catch residual water.

4. Locate the mesh filter at the water inlet connection, if accessible according to your model’s instructions.

5. Gently remove accumulated debris using a soft brush.

6. Reinstall the filter and reconnect the hose securely.

7. Restore the water supply and check for leaks.

Do not damage the mesh or force debris further into the valve assembly. If the filter cannot be accessed easily, arrange professional assistance.

4. Check the Household Water Supply

If the error persists, check whether the water supply is delivering sufficient flow. Low pressure or a restricted plumbing line can prevent the machine from filling on time.

Check nearby taps and determine whether other household fixtures are also receiving water slowly. If the supply is weak throughout the home, the issue may require attention from a plumber or water supplier.

Once the supply has been corrected, run a test cycle to see whether the error clears.

5. Reset the Washing Machine

A temporary interruption may leave the machine displaying an error even after the water supply problem has been corrected. A reset may clear a temporary control issue, but it will not repair a blocked hose or defective valve.

1. Turn off the washing machine.

2. Disconnect it from power safely.

3. Wait approximately one minute.

4. Restore power and select a wash cycle.

5. Observe whether water enters the drum normally.

If the washing machine fills normally, monitor the cycle to confirm that the error does not return. If 4C appears again, further diagnosis is necessary.

6. Contact a Qualified Appliance Technician

If the water supply is available, the hose is clear, and the inlet filter is clean, the problem may involve the water inlet valve, wiring, or electronic control system.

A qualified technician can test the valve, inspect the relevant connections, and determine whether a component needs replacement. This helps prevent unnecessary part changes.

Stop using the machine if you notice water leaking near electrical connections, a burning smell, or signs of electrical damage. If the appliance is under warranty, contact Samsung support before authorizing major repairs.

Wrap-Up

Samsung washing machine error 4C usually indicates that the appliance is not receiving enough water to continue its cycle. A closed supply valve, restricted inlet hose, clogged filter, or low household water pressure can prevent normal filling. A defective inlet valve is another possibility when the basic checks do not resolve the fault.

Start by confirming that water is available, opening the supply valve, and checking the accessible hose for kinks. Clean the inlet filter only if you can do so safely and according to your model’s instructions. If the error continues, arrange professional diagnosis rather than replacing components without testing them.