Samsung Washer 4C Error — Water Supply Fix

What it means

Samsung washer 4C error means the machine cannot fill with water — Samsung's 'Not filling error'.
Check the water tap is fully open, inspect the inlet hoses for kinks, and clean the mesh filters on the inlet valve.

Affected Models

Samsung Front Load Washer
Samsung Top Load Washer
Samsung AddWash Washer
Samsung EcoBubble Washer
Samsung QuickDrive Washer

Common Causes

Water tap not fully open or turned off
Kinked or crushed inlet hose behind the machine
Blocked mesh filter on the inlet valve
Low water pressure from household supply (below 0.5 bar)
Faulty water inlet valve solenoid

How to Fix It

Check the water tap.

Locate the cold water tap behind the machine.
Turn it fully counter-clockwise to open.
A partially open tap causes low flow that triggers 4C.
Check the inlet hose for kinks.

Pull the machine slightly away from the wall and inspect the inlet hose along its full length.
Straighten any bends.
Confirm the hose isn't crushed against the wall.
Clean the mesh filters.

Turn off the tap and unscrew the inlet hose from the back of the machine.
Inside the connection port there is a small mesh filter.
Remove with pliers, rinse under running water, refit.
These block gradually over years of use.
Check household water pressure.

Samsung washers need at least 0.5 bar.
If other taps in the house have weak flow too, the household supply is the issue — contact your water supplier.

When to Call a Professional

If the tap is open, hoses are straight, and mesh filters are clean but 4C persists, the water inlet valve solenoid has failed and needs replacement.

Frequently Asked Questions

What is the difference between Samsung washer 4C and 4E errors?

Both are the same fault — Samsung's 'Not filling error'.
Samsung changed the display format on newer models from numeric (4E) to alphanumeric (4C).
Same cause, same fix.