Keep the model scope explicit
The LG OLED55B3PSA manual describes automatic pixel cleaning based on accumulated use, performed after the television is turned off. It requires the product to remain connected to mains power. This is an exact-model maintenance explanation, not a claim that every OLED generation uses identical timing.
Check your TV’s full model and own manual before following a maintenance procedure. A B3 document can explain a B3 feature without becoming a universal guide for all webOS televisions.
Turn off and disconnect are different states
Switching the TV off with its normal control leaves the conditions needed for the documented automatic process. Immediately removing wall power is a different action. If the purpose is routine end-of-evening care, let the television follow its own manual rather than assuming every dark screen means all background activity has ended.
The manual notes that visible lines can occur during cleaning. Read its description before treating a maintenance indication as failed programme playback. Persistent image problems outside the documented process need a separate support assessment.
Avoid arbitrary manual cleaning routines
The manual provides a manual Pixel Cleaning control in OLED Panel Care. Its existence does not justify running it after every programme or inventing an hourly schedule. Use the manufacturer’s prompts and model-specific advice for the actual condition.
For long static viewing, the same manual discusses reducing persistent logo exposure and appropriate brightness choices. Prefer a varied normal viewing pattern and the documented panel-care controls over unsupported claims that one picture preset guarantees prevention.
Keep observations useful for support
If an image remains visible, note whether it persists across sources, whether the TV completed its documented care and the exact model. Avoid publishing photographs containing private account information when demonstrating the screen.
This guide reports the manufacturer’s maintenance requirements and contains no measured burn-in, panel-restoration or lifespan claim. The manual and LG support remain the authority for the particular panel.
Questions answered
Can I unplug immediately and still expect the documented automatic process?
The B3 manual says pixel cleaning needs mains power while it runs after switch-off.
Should I invent a daily manual-cleaning schedule?
No. Follow the TV’s prompts and its model-specific maintenance guidance.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.