What Hi Means
Hi is not an error - LG's dedicated Hi/Lo article explains this is a message indicating indoor temperature, shown when the indoor temperature is 36°C (96.8°F) or higher, an abbreviation of "High."
Common Causes of Hi
- Indoor room temperature has genuinely risen to 36°C (96.8°F) or higher
🔧 One Safe Check You Can Try
There's no repair step - this simply reflects a genuinely hot room; if the space feels unusually hot for reasons unrelated to weather, check for something blocking airflow to that room, but the display itself isn't reporting a malfunction.
⚠ Why You Shouldn't Go Further Than That
- No troubleshooting is needed for the display itself - it's accurately reporting room temperature, not describing a unit fault.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.