LG Washer Error Code FF: How to Fix It

Easy 30-60 minutes Medium Severity Verified June 2026
Error Code
FF
Brand
LG
Product Type
washer
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
30-60 minutes
LG washer error code FF indicates frozen water inlet valves, typically caused by extremely cold temperatures in your laundry room or utility area. This error prevents your washer from filling with water properly and requires thawing the frozen valves before normal operation can resume.
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Tools You'll Need

How to Fix Error Code FF

  1. Turn off and unplug the washer

    Always unplug electrical appliances before performing any maintenance to prevent electrical shock.
  2. Locate the water inlet valves

    Be careful when moving the washer - get assistance if needed to avoid injury or damage to flooring.
  3. Warm the laundry room

    Keep space heaters away from water sources and flammable materials. Never leave heating devices unattended.
  4. Apply gentle heat to frozen valves

    Do not use high heat or direct flames. Excessive heat can damage plastic components or rubber hoses.
  5. Check water supply hoses

    Do not force or bend frozen hoses aggressively as this can cause them to crack or break.
  6. Test valve operation

  7. Prevent future freezing

Parts You May Need

Pipe insulation foam
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Water inlet valve
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Water supply hoses
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Pipe insulation foam
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Water inlet valve
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Water supply hoses
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Pipe insulation foam
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Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
Pipe insulation foam
Check Price on Amazon
Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
Pipe insulation foam
Check Price on Amazon
Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
Pipe insulation foam
Check Price on Amazon
Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
Pipe insulation foam
Check Price on Amazon
Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
Pipe insulation foam
Check Price on Amazon
Water inlet valve
Check Price on Amazon
Water supply hoses
Check Price on Amazon
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When to Call a Professional

Call a professional if the water inlet valves are cracked or damaged from freezing, if the error persists after thawing, or if you're uncomfortable working around electrical appliances and water connections. Also contact a plumber if you need to relocate water lines or improve laundry room insulation.

Frequently Asked Questions

What causes LG washer error code FF?
Error code FF occurs when the water inlet valves freeze due to extremely cold temperatures in the laundry room, typically when temperatures drop below 32°F (0°C).
Can I still use my LG washer with error code FF?
No, you cannot use the washer until the frozen valves are thawed. The error prevents proper water flow and the washer will not complete wash cycles.
How can I prevent LG washer error code FF from happening again?
Insulate water supply lines, maintain laundry room temperature above 40°F, seal air leaks, and use a space heater during extremely cold weather periods.
Is error code FF dangerous for my LG washer?
While not immediately dangerous, frozen valves can crack or become damaged, leading to water leaks and more expensive repairs if not addressed promptly.
How long does it take to fix LG washer error code FF?
Typically 30-60 minutes depending on how severely frozen the valves are and how quickly you can warm the laundry room and thaw the components.