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Thermo Fisher Scientific

Thermoflex Chiller Error 41

Issue

The Thermoflex chiller displays an Error 41 causing the chiller to stop.

Environment

  • Thermoflex 900
  • Thermoflex 1400
  • Thermoflex 2500

Resolution

1. Verify that the display cable is properly attached (please see Attachments "ThermoFlex Error 41 Checks").

2. If problem persists replace the display panel.  Contact Thermoflex support at 800-258-0830 (option 2) to find the correct part number using the serial number of the chiller.

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2a. Remove the right and left side panels by removing the two screws securing the cover to the unit.

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2b. Undo the connection

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2c. Remove the two screws securing the panel to the unit.

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2d. Remove the two remaining screws and the 5/16" nut

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2e. Undo the ribbon cable and the four screws securing the board to the panel. NOTE: the orientation of the ribbon cable, ensure it does not get twisted when installing the replacement board.

Cause

The Thermoflex chiller cannot communicate with the display due to a problem with the display cable connection or the display panel.

 

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