the error code can be caused by several different things, the encoder, wiring, prox switch, or unit setup. are you familiar with entering the setup menu on these units? if so, check to see if the unit is set for largebox , also, try raising platform past 24" prox sensor and lowering back down.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.