LG Refrigerator Lo Warning
LG's own list illustrates this warning with a segment-display photo reading L0 — the same warning in seven-segment form.
What to check first
- Read the display: Lo (segment form L0) is a warning, not a fault.
- Measure or estimate the room temperature where the refrigerator stands — Lo means below −10 °C.
- Do not chase parts: LG publishes no procedure for Lo; the environment is the cause.
- Lo in a normal-temperature room → note it and see the rT page; contact LG with the model number.
Lo is one of the displays LG files under "codes that may appear on the display but do not indicate a refrigerator fault". It is a low ambient temperature warning: the room temperature around the refrigerator has dropped below −10 degrees Celsius, and LG notes the product will not function optimally in an environment with such low temperatures. There is no broken part behind Lo — the refrigerator is reporting the room it is standing in. The usual setting is an unheated garage or outbuilding in winter.
Safety first
- Lo involves no disassembly and no reset. Do not open the cabinet or bypass any sensor to chase an environment warning.
- Stop condition: stop using the machine and unplug it — and do not run it again until it has been checked — if you smell burning, see smoke, find damaged electrics (a scorched plug, a melted or cut cable), or water is leaking in quantity.
Common causes
The room really is below −10 °C
That is the whole meaning of the warning in LG's list. A refrigerator in an unheated space in a cold snap can stand in air far colder than the room it was designed for, and LG warns that performance suffers in those conditions.
The warning shows in a normal-temperature room
LG publishes no procedure for that case on this list. The fault that belongs to the same sensing system is rT — the ambient temperature sensor fault — which has its own page; a Lo that appears in a warm room is a reason to check the model manual and talk to LG, not to guess at parts.
Step-by-step checks
- Read the display exactlyConfirm the display shows Lo (on a segment display it can read L0, as in LG's own list photograph). Note whether anything else is displayed with it.
- Check the temperature of the room itselfLo is a statement about the room, not the cabinet: is the space the refrigerator stands in at or below −10 °C? An unheated garage in winter is the classic case LG is warning about.
- If the room is genuinely that cold, treat the room as the problemLG's published position is that the product will not function optimally in such an environment. LG publishes no owner procedure beyond the warning itself — the fix is environmental (a warmer location or a heated space), and your model's manual states the ambient range it is rated for.
- If the room is at a normal temperature and Lo persistsDo not invent a reset — none is published for Lo. Record the display and the model number and contact LG; the ambient-sensing fault in LG's list is rT, covered on its own page.
When to call a technician
LG publishes no service procedure for Lo because there is nothing to repair — it is an environment warning. A technician enters only if the warning appears in a room that is verifiably within the refrigerator's rated ambient range, which points at the sensing system (see the rT page) rather than at the room.
Model differences
| What you have | What changes |
|---|---|
| Segment displays | Lo can read as L0 — LG's digital and analog list illustrates the warning with an L0 display photo. |
| Garage / second refrigerators | The most common setting for Lo: an unheated space in winter, exactly the environment LG's warning describes. |
One-page checklist — Lo
- Display read exactly (Lo / L0)
- Room temperature checked where the refrigerator stands
- If the room is below −10 °C: environment identified as the cause
- If the room is normal and Lo persists: model number noted, LG contacted (see rT)
Official LG references
Frequently asked questions
Is Lo a fault code?
No. LG files Lo with the displays that do not indicate a refrigerator fault: it is a warning that the ambient temperature has dropped below −10 °C, with a note that the product will not function optimally in such an environment.
How do I clear Lo?
LG publishes no clearing procedure, because Lo is not stored as a fault — it reports a present condition. It belongs to a room below −10 °C; the condition it reports is the thing to change.
What is the difference between Lo and rT?
Lo says the room is cold (a true reading, no fault). rT says the ambient temperature sensor itself is faulty. A Lo in a warm room is the overlap case — LG's route there is the model manual and service, not a published owner fix.