Arctiko CRYO 170, Руководство по эксплуатации, Страница: 28 / 40

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5) Did you load too many samples of room temperature in the
freezer?
In this case, the inner temperature of a freezer rises
temporarily and a temperature alarm may not go off
depending upon the storage volume. In that case, check the
temperature change with 1-2 hours' time interval.
In case of storing a lot of samples which doesn't simply
coagulate even under the freezing point (0°C.) such as
cold storage packs, there are cases that it won't freeze down
even after running more than 24 hours. It is because of the
load is greater than the cooling capacity of the unit.
Such use can cause a breakdown.
3. Covered with frost.
It is normally when there are frequent door open/close and high
humidity. If frost is too much and serious, check as follows.
1) Check if there is a gap between door gasket and main body-
frame, with a door closed. If yes, frost forms by air with
moisture getting into the freezer.
If this frost is left as it is, it will increase more and closing a
door gets worse, which will then cause frost again. In this
case, turn off the power first, Defrost the unit completely and
wipe moisture with dry towel thoroughly.
Also, in case of removing frost while the power is on, use
the frost removal spatula etc. Do not remove frost with a
sharp tool. If using a sharp tool, the evaporator or t h e
refrigerant pipe can get damaged, which may lead to gas
leakage.
2) Check if there is any external probe going into the freezer
chamber, between the frame and the door gasket.
Use the rubber porthole.