LG washer FF error means Freeze Failure—water in the washer has frozen. Move the washer to a warm location (above 32°F/0°C) and allow 24-48 hours to thaw naturally. Never use direct heat to speed thawing. After thawing, run a test cycle and check for leaks that may indicate cracked components.
| Error Code | FF |
|---|---|
| Meaning | Freeze Failure—frozen water detected |
| Difficulty | Medium |
| Time to Fix | 24-48 hours (thaw time) |
| Tools Needed | None for thawing, Towels for leak testing |
| DIY Fixable | Yes |
| Official Source | LG Support |
The FF error code indicates your LG washer has been exposed to freezing temperatures and water inside the machine has frozen. This is a serious condition that requires proper handling to avoid permanent damage.
What Causes FF Error
FF error appears when the washer detects (or you’re attempting to use) a machine where water has frozen due to:
- Storage in unheated garage — During winter months
- Exposure during move — Left in moving truck overnight in cold weather
- Unheated basement or utility room — Temperature dropped below freezing
- Power outage — Home heating failed during cold snap
- Vacation home — Washer left in unheated space
Freezing temperature: Water freezes at 32°F (0°C). If the ambient temperature near your washer dropped below this, residual water in the pump, hoses, water valve, and drain system can freeze.
Why Freezing Is Dangerous
When water freezes, it expands. Inside a washing machine:
- Plastic drain pump housing can crack
- Rubber hoses can split
- Water inlet valve can fracture
- Internal components can be damaged
This damage may not be visible until you thaw the washer and run water through it.
How to Safely Thaw Your Washer
Step 1: Move to a Warm Location
If possible, move the washer to a heated indoor space:
- Inside the main home
- Heated garage
- Any area consistently above 32°F (0°C)
If you can’t move the washer:
- Use a space heater to warm the room (not directly aimed at washer)
- Ensure adequate ventilation
- Monitor temperature to maintain above freezing
Step 2: Wait 24-48 Hours
Allow the washer to thaw naturally at room temperature.
CRITICAL: Do NOT do any of the following: -Use a hair dryer on the washer -Use a heat gun -Point a space heater directly at the machine -Pour hot water on or into the washer -Attempt to run a cycle before fully thawed
Why no direct heat: Rapid, uneven heating can:
- Crack cold plastic and rubber components
- Cause condensation inside electrical parts
- Lead to thermal shock damage
If you suspect freezing but aren’t seeing FF error, try to gently turn the drum by hand. If it won’t rotate, water may have frozen in the outer tub. Allow thawing time before attempting any operation.
Step 3: Check Water Supply Lines
After 24-48 hours in a warm location:
- Inspect water supply hoses at the back of the washer
- Look for bulges, cracks, or splits
- Check hose connections for any visible damage
- Turn on water supply valves slowly
- Watch for leaks at connections
Step 4: Run a Test Cycle
Once fully thawed and supply lines checked:
- Keep towels on the floor around the washer
- Run a RINSE + SPIN cycle with warm water
- Watch carefully during:
- Fill phase — Check for leaks at water inlet valve (back of washer, interior)
- Wash phase — Listen for unusual pump or motor sounds
- Drain phase — Check for leaks at drain pump (bottom front on front loaders)
- Check the floor after the cycle completes
Step 5: Inspect Results
If no leaks: The washer may have survived freezing without damage. Continue using normally but monitor for leaks over the next several cycles.
If leaks are found: Internal damage has occurred. Note where leaks originate:
- Bottom front = Drain pump damage (most common)
- Back, near hose connections = Water inlet valve damage
- Under drum = Tub or internal hose damage
Professional Repair After Freeze Damage
If your washer leaks after thawing, common repairs include:
| Component | Typical Cost | Description |
|---|---|---|
| Drain pump | $100-200 | Plastic housing cracks easily when frozen |
| Water inlet valve | $100-175 | Replacement includes new valve assembly |
| Internal hoses | $75-150 | Various hoses route water internally |
| Full assessment | $75-100 | Service call to diagnose all damage |
Important: Multiple components may be damaged. A technician can pressure-test the system to identify all failures before repair.
Preventing Freeze Damage
Winterize If Not in Use
If storing a washer where temperatures may drop below freezing:
- Disconnect water supply
- Run a drain/spin cycle to remove as much water as possible
- Disconnect drain hose and let water drain out
- Add RV antifreeze (non-toxic) to drain pump:
- Pour 1 quart into drum
- Run a brief spin to circulate through pump
- Leave door/lid open to prevent trapped moisture
Garage/Basement Installation
If your washer is in an unheated space:
- Insulate water supply pipes leading to the washer
- Consider pipe heating cable for supply lines
- Add a space heater with thermostat control
- Install a low-temperature alarm to warn of freezing conditions
- Keep the room above 40°F (4°C) minimum
Model Coverage
FF error applies to all LG washers:
Front Load (WM series): All models—particularly vulnerable due to residual water in door boot seal
Top Load (WT series): All models—water can remain in pump and sump area
When to Call a Tech
Contact LG support (1-800-243-0000) or a technician:
- Before using if you suspect severe freezing
- If leaks appear during or after test cycle
- If unusual noises occur during operation
- If the washer doesn’t function normally after thawing
- If you’re unsure whether all ice has melted internally
Sources
For official LG support: