How to Fix Samsung Washer Error nF1

Written by

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: nF1 Difficulty: Moderate

Problem: Hot/cold water supply hoses reversed

How to Fix nF1 Error

This is an alias for the 4C2 error, indicating the hot and cold water supply hoses are reversed.
Shut off the water supply faucets.
Swap the hoses on the back of the washer so the hot hose goes to the hot inlet and the cold hose goes to the cold inlet.
Tighten the connections and turn the water back on.

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Get the ‘Secret Service Mode’ Cheat Sheet for your Samsung model. Includes an easy-to-read list of every error code and quick diagnostic tips.

✅ Join 15,000+ DIYers • Instant PDF Download

Appliance Type

Appliance Age

Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

Is it under warranty?

More options (for a better recommendation)

Brand

Your DIY Skill Level

EPA Section 608 Certified Technician with 18+ years experience.

Browse all Samsung error codes: Samsung Error Codes