My V2 stopped working mysteriously after replacing the axle tubes, which had become crimped over time, possibly from tightening the clamps too much. After many conversations and videos of the motherboard, Alphard sent a new motherboard - still didn’t run. After further inspection, I discovered that the wiring harness sheaths to both wheels were damaged. Upon closer examination I discovered a broken wire. Still barely under warranty, they sent 2 new motors! I’m so thankful that Alphard stands ...