XRotor Water Pump (Change Motor Direction)

Equipment Needed

• Xrotor water pump
• Servo tester / PWM signal generator / Radio

• Power supply (USB or DC, properly connected)

Step-by-Step Instructions
1. Initial Setup & Check Current Direction

• Connect the pump to the servo tester and power supply.
• Power on the system.
• Apply throttle (raise the value on the tester) and observe the impeller rotation direction.
• Note whether it is currently CCW (counter-clockwise) or CW (clockwise).

2. Power Off

• Turn off the power to the pump.

3. Set High Throttle (Prepare for Programming)

• On the servo tester, adjust the throttle value to 1950–1953 (high throttle position).

 
4. Enter Programming Mode

• Power the pump back ON while the throttle is set high.
• Listen carefully for the beeps:

• 1 beep → Enters motor direction change mode.

5. Change Motor Direction

• Once you hear the 1 beep, lower the throttle value to around 1050 (low throttle position).
• Wait for the next set of beeps:
  • 1 beep = CCW (Counter-clockwise)
  • 2 beeps = CW (Clockwise)
• When you hear the desired direction (1 or 2 beeps), immediately increase the throttle back to 1950–1953 to confirm your selection.

 
6. Save & Exit

• Wait for 3 beeps, this means the new direction is saved and programming mode has exited.

 
7. Test the New Direction

• Power cycle the pump (turn off and on again) if needed.
• Apply throttle and observe the impeller.
• The rotation should now be in the opposite direction from the original.
• Confirm water flow direction matches your needs.