Spider III Troubleshoot

Robot not backing up/sensor not working.

- Adjust variable resistor (p40)

- Check length of rubber tube phototransistor cover (p33)

- Check if pcb terminal pins are still securely soldered and not loose

- Check wiring (p33/37)

- Do not subject robot to areas that are too bright


Robot moving backwards / circling backwards

- Check installation of motors.

- Make sure flat part of motor holder faces flat part of motor (p35)

- Make sure to face ‘flat part’ outward (p36)

- Lower sensitivity of VR (p40)


Robot makes wrong movement when LED is shaded

- Check motor wiring


Motors working & M3x25 screw rotating but gears not moving.

- Use a screwdriver (w/ a bigger handle) to tighten up the M3x25 screw some more (p25)


Gears falling off

- Make sure that the motor base is installed correctly. Customers usually install it the wrong way (p26) Make sure that the pins where the flat spur gear w/ pinion large is facing towards the head of the robot.


LED does not light up even when the power switch is turned on

- Check wiring of LED

- Check polarity and life of 9v battery


Legs not moving

-          follow directions closely on pp29-31

-          make sure the small boss on the rod panel faces outside (pp30&31 inset)

-          tighten M3x25 screw into locknut (p25)


***Note: If you need a replacement part you can order it online here, https://owirobot.com/pages/Parts-Order-Form.html or fill out the warranty form in the back of your manual and send it to: 

Email: info@owirobot.com


Fax: (310) 515-0927