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Thermo Fisher Scientific

Overtemperature Protection Activated


The controller of the unit has activated overtemperature protection and switched to emergency control mode; the main menu is overlaid by a flashing warning triangle and the pertinent icon.


  • Heracell VIOS 160i
  • Heracell VIOS 250i


Displaying the cause of an error
  • Press anywhere on the touchscreen. 
  • The Error dialog box appears and the detected error is displayed.
  • The audible alarm is switched off.
Exiting the error display
  1. Press the End key [3].
  2. The error message disappears. The temperature display field is displayed with a red bounding box.
Resetting the error message
  1. Turn the device off.
  2. Open the door and allow the workspace to cool down.
  3. Turn the device on.

When overtemperature protection kicks back in even though possible causes (see error log) have been remedied, shut down the unit and call technical field service. 

Figure 1: Emergency control mode display

Figure 2: Error dialog box

For more information, refer to the Heracell VIOS 160i/250i User Manual.



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