Match the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Show stop conditions
- A hose or valve cracked
- Water is near wiring
- Open flame or heat gun would be used
Likely causes
- Water froze in a hose, pump, or valve
- Room or plumbing is below operating temperature
- Frozen restriction prevents flow
- Freeze expansion damaged a component
Quick checks, in order
Stop and close water valves
Do not force pumps or valves.
Warm the room gradually
Allow natural thawing above freezing.
Inspect for leaks after thawing
Damage may appear when water returns.
Do not use flame or concentrated heat
Use model-approved guidance only.
What happens when FF appears?
Temperature is the primary likely cause.
Run a supervised test and check for leaks.
Close supply and repair before reuse.
Stop and get qualified help when
- A hose or valve cracked
- Water is near wiring
- Open flame or heat gun would be used
Official support and model manuals
Use the full model number from the rating label. The manufacturer manual is the deciding reference when codes differ by region or product family.
Frequently asked questions
What does FF mean on a LG washer?
On many model families, FF indicates that water in the inlet or drain system may be frozen. Confirm the exact model and region because the same display can be used differently.
Can I clear FF by unplugging the washer?
A short power reset may clear a temporary state, but it will not fix a blocked hose, leak, failed sensor, motor, heater, or wiring fault. Stop if the code returns.
Should I replace a part based only on the code?
No. A code identifies a system or condition, not always the failed component. Complete safe external checks and use the model-specific manual or qualified service.