Thermo Scientific TSX Series Installation And Operation Manual page 44

Troubleshooting
Table 11. Troubleshooting Procedures
Problem Cause
Unit is warm
around door Perimeter Heater is ON
frame
Door is open
Door seal
Warm product recently
loaded in unit
Unit warms up
Power supply
Setpoints need to be
adjusted
"E01" on display Invalid Algorithm
"E02" on display Control Probe Failure
"E05" on display Ambient Probe Failure
Compressor Run Time
"E07" on display
High
Upper Bottle Probe
"Err" on display
Failure
"---" on display Lost Communication
40 TSX -20°C Laboratory and Enzyme Freezers
Solution
This is a normal function of the unit and is a result of the perimeter heater to
reduce condensation.
Make sure the door is completely closed.
Check the door seal, following instructions in
Allow ample time to recover from loading warm product.
Check for proper voltage to the unit. If there is no voltage to the unit, call an
electrician.
To adjust the setpoint, refer to
Check to ensure the model type is set correctly in service mode. Refer to
.
Section 9.4
Check for loose probe connector. Replace control probe.
Check for loose probe connector. Replace ambient probe.
The compressor is working harder to overcome the ice on the unit walls and
may start to thermally fail. Defrost the unit.
Check for loose probe connector. Replace upper bottle probe.
Call customer service.
Section 12.5
Section 9.3 .
.
Thermo Scientific