LG Communication Error Between Main PCB and Display PCB

Dryer shows E6; display or buttons may not respond correctly.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose harness between main board and UI board, Corroded connectors, Failed UI board, Failed main PCB

Safety first: Unplug dryer.

Steps:

Access control area: Remove the top panel and control panel cover.
Reseat connectors: Disconnect and reconnect the ribbon cables and harnesses between the main board and display board.
Inspect for damage: Look for burnt components or corrosion on either board.
Board replacement: Replace the UI board first if damage is visible there; if not resolved, the main PCB may also require replacement.

Hard 4/5

User Interface Board

Check Price on Amazon

We may earn a commission from links on this page.