Hi, here are the possible causes for Thermal Cutback 4,3 LED Code:
- The temperature exceeded the upper limit of 85C or is below the lower limit of -25C.
- Heavier payload than the vehicle's capacity
- Incorrect controller mounting
- Using the controller in harsh environment
If you are clear from these causes but the controller is still acting up, you might want to have it checked. However, if the LED Diagnostic is correct, one way to recover from thermal cutback is to allow the controller temperature to be within the recommended range. You may want to refer to the product manual to know more about it.