Error code
LG Washing Machine Error Code FF
Water supply or inlet path may be frozen The most likely cause is water supply is closed or weak. Check first: confirm the water tap is open and household supply is normal.
Quick answer
FF: Water supply or inlet path may be frozen
Meaning
Water supply or inlet path may be frozen
First safe check
Turn the appliance off before checking hoses.
Stop if
Stop if the code returns, water reaches electrics, there is burning smell, the appliance trips power, or the next step would require internal access.
Who to call
Contact a qualified technician if FF returns after safe visible checks, the appliance cannot complete a short test, or diagnosis would require internal access.
Medium severity: check safely and stop if it returns. Disconnect power before checking accessible parts where the appliance guidance says to do so.
Fix time
5-20 minutes for safe visible checks
Difficulty
Easy to moderate
The useful first pass is to confirm simple visible causes before assuming a failed internal component.
Expected outcome: A simple external cause may clear after one short test. Repeated FF means the appliance needs closer diagnosis.
What does this error code mean?
LG washing machine FF usually means water supply or inlet path may be frozen. The exact cause can vary by model, so use this page as safe fault-code context rather than a confirmed diagnosis of one failed part.
Start with the checks that do not require dismantling the appliance: power, water, drain, door, filters, load, or airflow depending on the fault family. If the code returns after one sensible retry, the safer next step is a qualified technician or the manufacturer's authorised service centre.
This code sits in the fill water fault family, so checks should stay focused on that system before broader part replacement is considered.
Symptoms users may notice
- The appliance may not fill at the start of the programme.
- Filling may take longer than normal.
- The programme may pause early in the cycle.
Why is this happening?
- Water supply is closed or weak
- Inlet hose is kinked, trapped, or restricted
- Inlet filter or valve is blocked
- Flow meter or fill valve signal is abnormal
What this usually points to
This code sits in the fill water fault family, so checks should stay focused on that system before broader part replacement is considered.
How to fix this safely
- Turn the appliance off before checking hoses.
- Confirm the water tap is open and household supply is normal.
- Inspect the visible inlet hose for kinks or crushing.
- Stop if the inlet connection leaks or the code returns with normal supply.
Can I fix this myself?
YesYou can make the visible checks listed above, but do not dismantle the appliance or test live electrical parts.
Safety boundary: Stop if the code returns, water reaches electrics, there is burning smell, the appliance trips power, or the next step would require internal access.
What not to do
- Do not keep clearing the display with repeated resets.
- Do not remove panels, test live wiring, bypass sensors, or force stuck parts.
- Do not continue normal use if there is leaking, overheating, burning smell, or electrical tripping.
Common misdiagnoses
- FF can be mistaken for a single failed component, but the same display can be triggered by supply, sensor, wiring, control, or usage conditions depending on the model.
Reset steps
- Switch the appliance off and wait briefly before restarting only if the manual allows it.
- Run one short test after completing the safe visible checks.
- Stop and arrange help from a qualified technician if the code returns.
Intermittent vs persistent faults
A one-off FF may follow a temporary condition. Repeated or immediate returns should be treated as persistent and escalated.
When to call a technician
Contact a qualified technician if FF returns after safe visible checks, the appliance cannot complete a short test, or diagnosis would require internal access.
Safety warning
Disconnect power before touching accessible hoses, filters, doors, or panels. Do not work on live electrical parts or sealed components.
Useful hub links
Related fill water fault codes
LG Washing Machine Error Code CL
Child lock or control lock is active
LG Washing Machine Error Code OF
Water level is too high or overfill has been detected
LG Washing Machine Error Code dE3
Door or lid lock signal is not confirming correctly
LG Washing Machine Error Code dHE
Drying heater or drying temperature fault on washer-dryer models
After resolving this fault, use the right wash setting to help prevent repeat issues.
Relevant guide
Frequently asked questions
What does LG FF mean?+
FF usually means water supply or inlet path may be frozen, although the exact trigger can vary by model.
Can I fix LG FF myself?+
You can try the safe visible checks on this page. Stop if the code returns or the next step would require opening the appliance.
Should I keep using the appliance with FF?+
No. Pause normal use until the fault has cleared after safe checks, especially if there is leaking, overheating, unusual noise, or electrical tripping.
Who should I call if FF keeps coming back?+
Use a qualified technician or the manufacturer's authorised service centre for internal diagnosis and repair.
Model variation note
LG may use this code differently across model ranges. Check the model manual or authorised support if the symptoms do not match this page.