Rev 002, 08/12
25
© SP Scientific 2012
Appendix
B
Appendix B: Troubleshooting
Condition
Recommended Corrective Action
Unit will not start.
Check power source. Ensure that the source voltage matches the unit’s specified
voltage.
Wait five (5) minutes after last power shut down before restarting.
Unit will not cool.
Ensure that the unit has adequate airflow. Air is pulled from the left side of the unit to
cool the refrigeration system components and then exits the rear panel.
Verify that the Chill light is illuminated.
Ensure that unit has been positioned with a minimum of six (6) inches of clearance on all
sides to maintain proper airflow and avoid damage to the refrigeration system.
Compressors will not start.
Wait five (5) minutes after last power shut down before restarting. The BioCool™ 80
should never be restarted immediately after it is powered off. The refrigeration system
compressor is equipped with a sensor designed to prevent the low-stage compressor
from starting within several minutes of a loss of power, intentional or unintentional (
e.g.,
power switched off, facility power outage, loss of main power, etc.).
Magnetic stirrer does not rotate.
The driving magnet for the stirrer is located under the bath. This magnet is driven by a
toothed drive belt, which is attached to a motor. Check the drive belt for proper tension.
It is possible for the drive belt to tighten or loosen during shipment.
To check the drive belt for proper tension:
•
Switch off the unit.
•
Unplug the unit and remove the cover.
•
Ensure that the drive belt has slight tension.
To adjust the tension of the drive belt:
•
Loosen the drive motor mounting nuts and slide the motor until the belt shows
slight tension (
i.e.,
3/8- to 1/2-inch of play). The drive belt is toothed, and
therefore, does not require full tension for operation.
•
Retighten the mounting nuts once you have corrected the drive belt tension,
and replace the cover.
Magnetic stirrer making noise.
Ensure that the stirrer is centered in the bath and that the holding screws on the
magnetic stirrer are snug.
Note:
Refer to Chapter 2: Installation, for more information.
Summary of Contents for FTS Systems BioCool 80
Page 1: ...LOW TEMPERATURE BATH OPERATOR S MANUAL FTS SYSTEMS BIOCOOL 80 Controlled Rate Freezing Bath...
Page 2: ......
Page 6: ...iv Rev 002 08 12 SP Scientific 2012...
Page 12: ...Introduction FTS Systems BioCool 80 4 Rev 002 08 12 SP Scientific 2012...
Page 24: ...Operation FTS Systems BioCool 80 16 Rev 002 08 12 SP Scientific 2012...
Page 34: ...Appendix B Troubleshooting FTS Systems BioCool 80 26 Rev 002 08 12 SP Scientific 2012...
Page 35: ......