# KISS ESC - FAQ

## Possible failures

| **Error**                                                               | **Solution**                                                                                                                                                               |
| ----------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| The ESC shows no reaction                                               | Check if battery is connected correctly                                                                                                                                    |
| The LED(8) lights up after connecting the power plug but then stays off | Check Signal connection. When using PWM re-calibrate the ESC                                                                                                               |
| The engine trundles only and does not rotate properly                   | Check the 3 motor connections (1) on contact (some motor cables are painted and must be stripped)                                                                          |
| The Copter looses power after some time.                                | The ESC goes into its temperature protection. Reduce the load or give it more cooling.                                                                                     |
| The Copter jerks at full speed                                          | 1. the ESC might go to its over-current protection. In this case it reduces its max current to 40A. This reduction can confuse the FC. Please lower the load in this case. |

## Beep/Blinking Codes

1 beep/blink /second = too many DShot errors\
2 beep/blink /second = disarmed because of ESC signal failsave (a too long period without a valid signal)\
3 beep/blink /second = disarmed because of a blocked motor or it was not able to get the motor running

## Questions

| How can i change motor spin direction? |   | How to change motor spin direction is described for each ESC in the ***ESC wiring and connection*** section. If you use a full KISS Setup with KISS FC the easiest way is to change the motor spin direction via the ESC flasher tab in the KISS FC GUI.                          |
| -------------------------------------- | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Do i need to calibrate the ESC?        |   | ESC calibration is only needed if you use a PWM/oneshot/multishot signal. ESC calibration is described in [KISS ESC - calibration & 3D mode](https://flyduino.gitbook.io/kiss-documentation/english-kiss-docu/kiss-esc-common-info/kiss-esc-calibration-and-3d-mode).             |
| Can i use KISS ESC in 3D mode?         |   | Yes! Please refer to [KISS ESC - calibration & 3D mode](https://flyduino.gitbook.io/kiss-documentation/english-kiss-docu/kiss-esc-calibration-and-3d-mode#3d-mode). If you use the ESC together with a KISS FC the 3D mode can be set via the ESC flasher tab in the KISS FC GUI. |
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