If you have a red flashing light on one side and it wont move and Recalibrate doesn't fix it... Check all plugs and wires are getting good connection (Especially the 5 wire sockets). If they are and it still don't move then it probly has a blown output fet on the side thats red. They're easy to change.. MAKE SURE BATTERY IS UNPLUGGED!! Measure the Mosfets, 6 on a heatsink per side(GDS)... Usually only 1 or 2 short... DMM to Diode, Neg on Center pin (Drain), Gate approx +1.5v, Source approx .5v. YST7575C crosses to RU6888R 68v 88a TO220 *** For the 12 Fet Mainboard Model, one bank of Fets controls one drive wheel. Do a continuity test to figure out what bank controls what side.. Each bank of Fets, are broken into pairs per thick drive wheel wire (YGB).. Use Different Colored Sharpies on the connectors before unplugging...
Worked for me. You have to unplug the connectors to the wheels. Then, only the middle pin should have a resistance of zero, the other 2 should have infinite resistance.
