How to do a hard reset on an LG?

To do a hard reset on an LG dryer, washer, or other LG appliance, you perform a complete power discharge that clears the electronic control board memory and removes temporary glitches and error codes. For an LG electric dryer, press Power to turn it off, then unplug the dryer from its 240-volt wall outlet or turn off the double 30-amp circuit breaker in your electrical panel. For an LG gas dryer, unplug it from the standard 120-volt outlet and ensure the gas valve is left in its current position. Leave the appliance completely unplugged for at least 5 to 10 minutes, which allows capacitors on the main control board to fully drain. While unplugged, press and hold the Start/Pause button for 5 seconds to dissipate any residual charge stored in the electronics. After waiting, plug the dryer back in or turn the breaker back on, press Power, and run a test cycle on Time Dry with high heat for 10 minutes with no clothes to verify it heats and tumbles. For an LG washer, the same unplug procedure applies, plus holding Control Lock for 3 seconds to clear child lock. For LG TVs or phones, a hard reset involves holding Power for 10 seconds or using volume plus power button combinations. A hard reset will not fix mechanical failures like a broken belt or blown thermal fuse but often clears d80, d90, tE, or LE errors.