Thermo Scientific TDE Series Manual page 29

Problem
Vibration noise.
Rattling noise/Loud noise.
24 | Troubleshooting Guide
Cause
Unit is not level.
Loose side panels.
Rubber tubing separators
and/or compressor
dampeners may have
loosened.
Solution
Check if the unit is installed in a level area free from
vibration. (Refer to Leveling in user manual).
Check side panel screws, tighten them if necessary.
Call service.
Thermo Fisher Scientific ULT Freezers