LG TV & Audio 86QNED80URA 86" Class QNED80 4K QNED MiniLED Smart TV LOCAL DIMMING FAIL Error Fix: Local Dimming Zone Malfunction

Error code LOCAL DIMMING FAIL on the LG TV & Audio 86QNED80URA 86" Class QNED80 4K QNED MiniLED Smart TV means: Local Dimming Zone Malfunction. On TVs with local dimming (QNED MiniLED), one or more dimming zones fail to dim properly or stay permanently bright/dark. Creates visible bright spots (blooming) or dark patches. Local dimming controller or individual LED zone drivers may have failed. Disabling local dimming in settings serves as temporary workaround. Hardware repair requires replacement of local dimming driver board.

The most successful fix is "Replace Local Dimming Driver Board" (medium difficulty, ~45 minutes). Estimated DIY cost: $100-$150. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Replace Local Dimming Driver Board") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Phillips screwdriver.

DIY cost: $100-$150. Professional repair typically costs $200-$300. Many homeowners save money by trying the top-ranked community fix first.

The LG TV & Audio 86QNED80URA 86" Class QNED80 4K QNED MiniLED Smart TV has 8 other known error codes, including: APP CRASH (App Freezes or Crashes), AUDIO SYNC (Audio Out of Sync with Video), BACKLIGHT BLEED (Backlight Bleeding / Clouding), BACKLIGHT FAILURE (LED Backlight Strip Failure — No Picture), BACKLIGHT STRIP FAIL (LED Backlight Strip Physical Failure), and 3 more.