Turn off the device and verify the proper communication cable connection between the Hand unit and the Primary Control Unit.

Turn on the device and try to inject the air.
Check if the green light is turning on while injecting.

If the green light is not turning on- Turn off the device and loosen the cable on the hand unit side by turning it counterclockwise.

Replace the communication cable if there is still an orange light stuck on the Hand Unit.
​

Turn the device back on and try injecting.
Ensure the orange light is turned off and the green light is turning on after you perform an injection.

If you still have an issue- Loosen the cable on the hand unit side by turning it counterclockwise and restart the device.

In case the issue persists- Replace the hand unit.
If you don't have a spare one- please contact your pHi-Tech regional representative to let him know of the issue.