Maintenance and Troubleshooting
Thermo Scientific Cryopgenic Storage Freezers
Installation and Operation Manual
19
7 Maintenance and
Troubleshooting
WARNING!
Unauthorized repair of your freezer will invalidate your
warranty. Contact Technical Service at 1-800-438-4851 for additional
7information.
CAUTION!
Maintenance should only be performed by trained
personnel.
7.1 Condenser
Maintenance
7.1.1 Cleaning the Condenser
and Filter
Clean the condenser at least every six months; more often if the laboratory
area is extremely dust prone.
To clean the condenser, complete the following steps:
1. Pull the grill open.
2. Remove the filter. Check the fans. If a fan is not operating, contact an
Authorized Service Company immediately.
3. Vacuum the condenser, using a soft brush attachment to avoid
damaging the fins.
4. Remove the filter.
5. Vacuum the filter to remove loose dust, rinse the filter in clean water,
shake the excess water from the filter, and reinstall the filter.
6. Close the grill.
7.2 Gasket Maintenance
Periodically check the gaskets around the lid for punctures or tears. Leaks
are indicated by a streak of frost which forms at the point of gasket failure.
Make sure that the cabinet is level (refer to Section 5.3 on page 7 for leveling
information).
Keep the lid gasket clean and frost free by wiping gently with a soft cloth or
soft brush.