I spoke too soon. I am now getting a OE error (Drain Error).
When I start a cycle, there is nothing (no pump, no draining, just silence) until the unit starts to fill. Unfortunately, after a partial cycle, I get the OE error and I now have a tub full of water that won't drain.
Of the four possibilities from LG (The Drain Hose kinked or blocked, Wiring connection is OK?, The drain outlet of sump is blocked or The Drain Pump/Motor or circuit is troubled), which is most likely, keeping in mind it's a new sump assembly?