I have a quad running 1750kv stout ethix motors with Kiss V2 FC and Kiss 4-in-1 25A ESC with impulse RC regulator board and TBS crossfire.
I had an unfortunate crash into a swimming pool.
After replacing a new Kiss FC V2, all four new 1750kv stout motors, Kiss 4-in-1 ESC, and new impulse rc regulator board, I notice when I arm the quad, the rear left motor spins slower than the rest of them. The beeper through the motor also doesn't beep from the rear left (I can feel the vibration and see the vibration of the other three motors when motor beeper is on).
Without any props on and I arm the quad and throttle up, all other three motors would ramp up by itself as expected, but the rear left just stays spinning the same slower rpm and doesn't ramp up at all. I have activated and flashed both kiss FC and ESC using the same firmware I had previously and restored the same settings I ran before and also calibrated the accelerometer on the FC as well. I have also swapped the rear left motor with another working corner and rear left still spins slower, it doesn't ramp up while others do.
Since a working motor from a good corner is having the same problem in the rear left position, this made me think I had a faulty ESC and proceeded to replace it with another brand new one, but I am having the same problem again with the rear left spinning lower and not ramping up. When I try to take off with props on, the rear left would seem like it's underpowered and just won't spin up to speed. The quad would tilt down to the rear left as soon as I lift off the ground as all other props are spinning just fine except the rear left. I am using brand new lipo packs and I double-checked all soldering connections. It's puzzling why I still have this problem after replacing with brand new FC and ESC.
I had an unfortunate crash into a swimming pool.
After replacing a new Kiss FC V2, all four new 1750kv stout motors, Kiss 4-in-1 ESC, and new impulse rc regulator board, I notice when I arm the quad, the rear left motor spins slower than the rest of them. The beeper through the motor also doesn't beep from the rear left (I can feel the vibration and see the vibration of the other three motors when motor beeper is on).
Without any props on and I arm the quad and throttle up, all other three motors would ramp up by itself as expected, but the rear left just stays spinning the same slower rpm and doesn't ramp up at all. I have activated and flashed both kiss FC and ESC using the same firmware I had previously and restored the same settings I ran before and also calibrated the accelerometer on the FC as well. I have also swapped the rear left motor with another working corner and rear left still spins slower, it doesn't ramp up while others do.
Since a working motor from a good corner is having the same problem in the rear left position, this made me think I had a faulty ESC and proceeded to replace it with another brand new one, but I am having the same problem again with the rear left spinning lower and not ramping up. When I try to take off with props on, the rear left would seem like it's underpowered and just won't spin up to speed. The quad would tilt down to the rear left as soon as I lift off the ground as all other props are spinning just fine except the rear left. I am using brand new lipo packs and I double-checked all soldering connections. It's puzzling why I still have this problem after replacing with brand new FC and ESC.