Dispensing does not start and device does not move

First check that the device is powered. You should see a blue LED flashing like a heartbeat on the arm. If the LED is not flashing please check the power supply.

Next check the communications to the device. Check that the connectors are fully inserted. If you are using a USB to Serial adaptor please check that the COM port mapping is correct and that you have selected the correct COM port from your browser.

If you need assistance please contact us.

Fluid leak at the valve head

Fluid leaks at the valve head can be caused by a missing o-ring in the inlet adapter or a tube loose nut. Both situations are easily resolved as follows :-

Fluid leak due to missing o-ring

When removing a valve it is sometimes possible that a seal o-ring can be pulled out of the inlet adapter. This means that when the valve is replaced there is no seal in place in the fluid line. We recommend that whenever you remove a valve you should always remove the inlet adapter also and confirm that the o-ring is well seated.

Fluid leak due to loose tube nut

Although you should not over tighten the tube nut as it could restrict fluid flow, it must be tight enough to allow the ferrule to seal correctly against the tube and inlet adapter. The tube nut will never become loose during normal usage of the dispenser, however it can become loose during shipping or if the tube is twisted excessively during the process of filling the fluid supply bottles.