Troubleshooting - Thermo Scientific TSX Series Installation And Operation Manual

Troubleshooting

11 Troubleshooting
Troubleshooting Problems
Unit doesn't power on
Unit's audible alarm doesn't sound when out of temp range?
LED Display Issues
Solid red
Data logging error but unit is operating normal
Flashing Red
Data logging error during power failure mode
(15 second intervals)
Not Lit
Power failure and no battery backup power
Flashing Green
Data Logging is active in a power failure mode
(15 second intervals)
Interior Concerns
Condensation
I have frost forming on the walls
I have condensation collecting on the walls
Door doesn't close/closes incorrectly
Door alarm keeps sounding
I can't hear any noise from the unit
34 Installation and Operation
Customer Resolution
Check for proper installation of the power plug.
Did you just power up the refrigerator and is the system pulling
down to set point temperature? Alarm will not sound until the
set point is met.
Did you have a recent power failure and is the system pulling
down to set point temperature? Alarm will not sound until the
set point is met.
Download data and clear the data log. If light remains red there
may be another issue with the internal data log; download data
and contact Thermo Scientific Customer Care.
Download data and clear the data log. If continues flashing red,
possibly there's an issue with the backup battery power running
low. Replace it with appropriate battery.
No action required
Restore power to the unit and confirm that the LED becomes
solid green.
Are you opening the door frequently? If so, the cooling system
is working hard to maintain the target set point and condensation
may freeze on the walls. It will thaw during the next defrost
cycle. Run a manual defrost cycle if desired.
In a cold-wall system humidity will cause condensation to form
on the walls.
Check to make sure something isn't blocking it from closing
completely.
Check to make sure the door is properly aligned in the frame by
looking for uneven surfaces. For example, is the gap from the
hinge to edge equal in width all the way across the surface?
Is the power on? Is the LED on front a solid green? If so, the
unit is powered and operating normally. Once the refrigerator
reaches its set point temperature then it will be very quiet during
normal operating conditions.
Thermo Scientific TSX 5.5 cu.ft Undercounter Refrigerator