Yes i have ran into that before. Had to get info off unit was at another plant i take care of 36 lift trucks and 22 electric pallet jacks sometimes it's hard to keep them all straight. ser#etb5b5108. Most of our trucks are cat ep16kt or et3000 models. The wires on that one are yellow and green for heat sensors and purple and orange for brush sensor. All that seems to be operating fine wires test fine and display is showing brush light when they are jumped and heat light when i disconnect heat wires. The unit will get up to 6 mph on straight away don't want to go up a grade or turn do to lack of power. Have power setting set to high speed set to top speed and accelerator on fast. Thanks