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Thermo Fisher Scientific

Unit is constantly alarming

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Issue

Unit is constantly alarming

Environment

TSX Ultra Low Temperature (ULT) Series:

Thermo Scientific – TSX40086A
Thermo Scientific – TSX40086D
Thermo Scientific – TSX40086V
Thermo Scientific – TSX40086G
Thermo Scientific – TSX50086A
Thermo Scientific – TSX50086D
Thermo Scientific – TSX50086V
Thermo Scientific – TSX50086G
Thermo Scientific – TSX60086A
Thermo Scientific – TSX60086D
Thermo Scientific – TSX60086V
Thermo Scientific – TSX60086G
Thermo Scientific – TSX70086A
Thermo Scientific – TSX70086D
Thermo Scientific – TSX70086V
Thermo Scientific – TSX70086G
 

Resolution

Possible Causes and Solutions:

  1. Cause: Exterior door is closed but not sealed completely.
    Solution: 
  • Clean any ice build-up on gasket and/or cabinet surface.
  • Check for punctures or tears on gasket. Replace if necessary. 
  1. Cause: Alarm icons appear on user interface home screen.
    Solution: By pressing red bell or yellow triangle, the ticker message provides alarm details and recovery details.
  1. Cause: Door open alarm, exterior door not closing completely.
    Solution: Open door completely and immediately close and latch it.
  1. Cause: Door open alarm, exterior door is closed but not sealed completely.
    Solution: Defrost exterior door gasket and make sure the door is completely sealed.
  1. Cause: Alarm set points may have changed.
    Solution: Change the set points as required.