Originally Posted by
PrestonHays44
I recently bought an EZRUN 35A / 9T 4300 brushless combo. Im waiting on a Spur for my EXT2 so I put it in my buddys Stampede to c what it would do. After a few min of running it shut down, and I assumed it was the overheat kickin in. After a few min i reconnected the batt n turned on the ESC. Right away the diode or resistor (the black thing on top of the heat sync) got hot n one of the legs the connects it to the board burnt in half. I looked inside the esc n nothing else seems to b burnt or out of place. Does anyone know what in the world could have caused this. Im running a 3s 11.1v lipo, but ive seen that done lots of times w/o hurting anything.
Sounds like you burned it out by using too low of a turn motor with two high of a voltage. That combo probably pulled more amps than that little ESC could take. The 3 cell off road recommendation is >18T motor.
Direct from HW's site:
1.6 Suitable Brushless Motor:
With 4-6 cells NiMH/NiCd or 2 cells Lipo: On-Road≥9T, Off-Road≥12T;
With 6-9 cells NiMH/NiCd or 3 cells Lipo: On-Road≥12T, Off-Road≥18T;