Maintenance and Troubleshooting
Thermo Scientific Cryopgenic Storage Freezers
Installation and Operation Manual
21
7.5 Troubleshooting
Procedures
Table 1-2.
Troubleshooting Procedures
Problem
Details
Check Fuse indicator is
on.
Surge protector is blown. .
Clean Filter indicator is
on.
Condenser filter is dirty. Refer to Section 7.1 on
Alarm Battery Low
indicator is on.
Alarm battery is low on charge .
Voltage Boost indicator
is on.
Low incoming line voltage to the freezer..
No display, no fans
running.
No power to the unit.