​Common Questions

We offer you:

​The machine does not open (conventional control):
  • ​Use the display to check whether the machine is still under vacuum. 
  • Move the vacuum breaker to the open position. Wait approx. 12 seconds (release time relay).   
  • If the ventilation time takes longer than 12 seconds, check that the filter on the base is not blocked and replace it. 
  • If the machine still does not open, please contact PC Laborsystem GmbH.
​The machine does not open (PLC with touch screen control):
  • ​Systems controlled by Siemens PLC open when the pressure sensor has reached the safety limit value.
​The mixer does not start:
  • ​The proximity switch may have received an incorrect signal. Open the mixer by about 5 cm to reset the safety circuit and 
  • Check that the proximity switch on the vacuum hood is positioned correctly.
    Machine open LED on the proximity switch off, machine closed LED on.
    The measuring range is between 1-3mm.
  • Start the mixer as usual.
  • If the forced cooling fan starts but not the mixer, open the control box to check the status of the frequency converters and document any error codes.
  • If the machine still does not start, please contact PC Laborsystem GmbH.
​The machine does not switch on:
  • ​​Ensure that the system is connected to a suitable power source.
  • Turn the main switch to the ON position. Check that all fuses in the control cabinet are ON.
  • Ensure that all safety circuits in the control box are set to ON.
​The direction of rotation of the can/boiler is incorrect:
  • ​​If the direction of rotation is not clockwise, swap 2 wires on the input plug after you have switched off the mixer and disconnected disconnected from the mains.