What IF (Lint Filter Not Installed) Means
The IF error code appears on the Styler when it's run without the lint filter in place, or with the filter installed incorrectly, per LG's dedicated IF troubleshooting article.
Common Causes of IF (Lint Filter Not Installed)
- Lint filter missing entirely
- Lint filter installed but not fully seated in its groove
🔧 One Safe Check You Can Try
Install the lint filter fully into its groove so it fits in the correct location, matching how it's shown in your owner's manual.
⚠ Why You Shouldn't Go Further Than That
- If the IF error persists after you've confirmed the filter is correctly installed, LG's article says to contact its Request a Repair service rather than keep reseating the same filter repeatedly - that points to a sensor fault rather than an installation issue.
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.