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DAILY
1. Take temperature readings from the thermometers
and note down the temperature and the time of
reading.
Keep the temperature records systematically. It is
suggested that minimum 2 readings should be
taken (in the morning and afternoon) preferably at
the same hours of each day.
If the temperature is observed to be below or
above the required range, adjust the thermostat
(see Action 2 on page 8) by steps, allow the
appliance to run for about one hour under
observation. If required, adjust the thermostat
further until the required temperature range is
obtained.
To make the inside colder, the thermostat knob is
to be turned clockwise to a higher setting.
To make the inside warmer, the thermostat knob is
to be turned anti-clockwise to a lower setting.
2. Clean the exterior of the appliance with a clean dry
cloth.
WEEKLY
1. Examine the inner compartment and see if frost
formation is more than 1 /4" (6 mm). If so,
DEFROST the appliance as described earlier (see
page 10).
If it is observed that Defrosting is required to be
done each week:
a) Examine the rubber seal on the lid, if it sits
properly. Any gap between the cabinet and seal
can be checked by placing a visiting card between
them. The card should resist being pulled out
freely. If the card can be pulled out freely, there
exists a gap. Such gap will allow outside air to go
in and form frost early. In such cases the lid should
be adjusted or the seal should be changed.
b) Restrict and reduce frequency of opening the
appliance. Open only when absolutely necessary.
MONTHLY
1. Clean the compressor compartment:
a) Put off the switch, if any, and take out the plug from
the wall socket.
b) Take out the plastic grid of the compressor
compartment (see page 5, actions 1 ). Clean the
interior of the compressor compartment with a
soft brush.
c) Check the mounting brackets of compressor, if
they are tight. If not, rectify.
d) Fit back the plastic grid (see page 7, actions 3)
2. Clean the lid seal (see page 11, action 5b).
3. If possible, put a standard mercury thermometer
inside the cabinet and compare the readings
with those of the dial thermometers and see if
they are correct.
Dial thermometers with incorrect readings may have
to be re-adjusted or replaced, as incorrect readings
may lead to wrong storage temperature and loss of
the potency of the vaccines preserved.
5. PERIODIC OBSERVATIONS / CHECKS / ACTIONS
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