20
Symptom
Possible Cause
Remedy
Refrigerator compressor does not
start when the display shows the
system is normal and has power
Refrigerator is in its normal operating
cycle
Compressor only runs
occasionally to keep the ice
lining fully frozen. Wait for 10
to 15 minutes after power first
becomes available.
Door won’t close tightly
Latch may be blocking the door
Make sure latch is not caught in
the door, adjust tension of latch
to hold door tightly closed.
Refrigerator is not level
Level refrigerator by shimming
underneath CFD-50.
Excess condensation water in the
payload storage cabinet
Clogged drain hole
Clean drain hole at the back of
the storage chamber and tubing
down to the drain pan, and
empty drain pan.
Prolonged door opening or door ajar
Avoid prolonged door openings
and make sure door is closed
after use.
Refrigerator is not positioned on a
leveled and stable floor
Position the refrigerator on a
stable floor and level it so that
condensate flows to the drain in
the back.
Damaged or leaking door gasket(s)
Replace damaged gasket(s).
Storage compartment is below 2°C
Ambient temperature is below 10 °C
Move the CFD-50 to a warmer
location.
Malfunctioning control board or
mechanical thermostat
If vaccine chamber temperature
is below 2 °C while ambient
temperature is above 10 °C, call
for service.
Condensation on the body of the
refrigerator
High ambient humidity
Wipe down the condensation
with a clean dry cloth.
Heat on both sides for CFD-50
CFD-50 has built-in condensers in its
sides in addition to the external back
condenser.
Normal phenomenon, no action
required.
Buzzing or dripping sound of liquid
Refrigerant flows within the CFD-50 on
condensate flowing to drain pan.
Normal phenomenon, no action
required.
