Troubleshooting Article : Pump Valve Errors

Table of Contents


When starting the machine, during the initial startup-sequence the GUI displays a “Pump Valve Position Error”


This problem is most likely caused by improper clean-out of the valve assembly or inadequate system warm-up time. Product residue can cause the torque required to turn the valve to become excessive.


The following steps should be taken to correct the pump errors.

  1. From the GUI enable the chamber heater.
  2. Bring the chamber heater to temp, and allow to sit for 30 minutes.
  3. From the GUI, click Application → Restart.
  4. Wait 30 seconds.
  5. Refresh the page, re-enable the chamber heater.
  6. Proceed with normal operations.


To prevent this problem, ensure that the system is consistently cleaned after each use, and that the valve assembly is not permitted to cool-down with product still inside.

Further Solutions

If the above steps do not clear the error, try heating the valve assembly with a heat-gun until it is a consistent 75c and restart the machine.

V1.0 – 1/25/2020 – Initial Release

We use cookies to improve our user experience. By using our site, you consent to the use of cookies. Read More