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Thermo Fisher Scientific

Power Failure indicator

This article provides troubleshooting steps for resolving issues with TSX Laboratory Refrigerators, Blood Bank Refrigerators, and various TSX Freezers when they do not operate or display a Power Failure Indicator. It outlines checks for power cords, circuit breakers, voltage testing, and outlet functionality. Additionally, it warns against using GFCI-protected outlets due to potential nuisance tripping.

Issue

Unit does not operate, or Power Failure Indicator is on.

Environment

  • TSX Laboratory Refrigerators
  • TSX Blood Bank Refrigerators
  • TSX -20° Laboratory and Enzyme Freezers
  • TSX -30° Lab Freezers
  • TSX -30° Plasma Freezers

Resolution

Follow these steps to resolve the issue:

  1. Check that the cord is securely plugged in. Plug another appliance into the outlet to see if it is live.
  2. Check that the double pole circuit breaker located next to the power inlet is in "ON" position (i.e., "1" position). 
  3. Try cycling to OFF position (i.e.,"0" position) and then bring to ON ("1") position. 
  4. Test the voltage and verify that it is correct for your unit. Refer to the appropriate unit specifications.
  5. If the outlet is dead, check the circuit breaker or fuses.

Note: The unit should not be connected to a GFCI (Ground Fault Circuit Interrupter) protected outlet as it may be subject to nuisance tripping.

WARNING: Troubleshooting procedures involve working with high voltages which can cause injury or death. Troubleshooting should only be performed by trained personnel.

TSX Laboratory Refrigerators

TSX Laboratory Refrigerators - Unit Specifications - Figure 1.png

TSX Blood Bank Refrigerators

TSX Blood Bank Refrigerator Unit Specifications - Figure 1.png

TSX -20° Laboratory and Enzyme Freezers

TSX -20 Laboratory and Enzyme Freezers Unit Specifications - Figure 1.png

TSX -30° Lab Freezers

TSX -30 Lab Freezers Unit Specifications - Figure 1.png

TSX -30° Plasma Freezers

TSX -30 Plasma Freezers Unit Specifications - Figure 1.png

Cause

Power supply