LG Refrigerator Error Code OF F

Not a faultReviewed November 2026Checked against manufacturer documentation

What this code means

OF F: Demo (display) mode is on: cooling is disabled. This is not a fault

The refrigerator is in showroom demo mode, so the lights and display work but nothing cools. It is not a fault: turn demo mode off with the FRIDGE and Express FRZ buttons and normal cooling resumes.

Also shown as: O FF, OFF

Fix level

Not a fault

This is a status display, not a fault. No repair is needed.

Time to run the checks

About 15–30 minutes

For the 3 checks on this page — not a full repair.

You may need

No special tools

The checks below use basic household items only.

Parts that may be involved

None usually

Parts are model-specific; see the note below before ordering.

Common causes

Demo mode left on from the store or delivery
Demo mode switched on accidentally by a button combination

What to check, in order

Safety first. Switch the appliance off and unplug it before checking anything inside it. If you are not comfortable with any step, stop and call a technician.

Open a refrigerator door, hold down the FRIDGE (Refrigerator) button and press the Express FRZ (Express Freeze) button 3 times; on some models, hold FRIDGE and Express FRZ together for about 3 seconds until a chime sounds
Confirm the display shows normal temperatures again and the unit starts cooling
If your panel layout is different, look up 'demo mode' or 'display mode' in the manual for your model, as the button pair varies

Clear the code and test

Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
Plug the appliance back in and restore its water supply if it has one.
Run the shortest programme and watch the point where the code appeared before.
If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.

When to call a professional

This display is not a fault, so there is normally nothing to book. Call a technician only if the machine also behaves abnormally, or if any of these apply:

The code comes back after you have run the checks and a test cycle.
You smell burning, see sparks or scorch marks, or the breaker trips.
Water is leaking and you cannot stop it at the tap.
The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.

When you call, give the brand, the code OF F, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.

Questions people ask about OF F

What does OF F mean on a LG refrigerator?

OF F means: Demo (display) mode is on: cooling is disabled. This is not a fault. The refrigerator is in showroom demo mode, so the lights and display work but nothing cools. It is not a fault: turn demo mode off with the FRIDGE and Express FRZ buttons and normal cooling resumes.

Can I fix LG OF F myself?

There is nothing to fix: code OF F is a status display, not a fault. The checks on this page show how to exit the mode or confirm the setting.

How do I clear LG OF F?

Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.

Sources checked

The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.