Washer-dryer combo overfills or shows OE/OF while water continues to enter or remains too high in the drum.

Safety first: Immediately unplug the unit and close both water supply valves to stop filling. Mop up any water on the floor to prevent slipping.

Steps to diagnose:

• Check if water continues to flow when unplugged: If water still enters the drum with power off, the water inlet valve is mechanically stuck open and must be replaced.
• Inspect pressure hose: Remove the top cover and locate the pressure sensor and its air hose. Ensure the hose is not disconnected, kinked, or blocked with residue. Clean or replace if necessary.
• Examine wiring: Confirm the pressure sensor connector is fully seated and wires are intact.
• Test fill: After corrections, restore power and water, then run a small load to verify that filling stops at the correct level.

When to stop: Persistent OE/OF after hose and valve checks indicates a faulty pressure sensor or control board. These parts should be replaced with Samsung-compatible components; board replacement is best left to a professional.