Error code C6 on LG Mini Split

We installed an LG Mini Split in May, and it has run great until last night. When I turned it on it ran for about 3 minutes then quietly shut off, and displayed C6 on the blue display on the wall unit. The remote would not shut it off or have any effect. We flicked the breaker, which seemed to re-set it, then it just did the same thing. Anybody have an idea what the C6 error code means?

Inverter compressor run current high.
Call installer/dealer, it should be covered with warranty.