Maintenance; Defrosting - Zanussi ZRB634FW Mode D'emploi

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Maintenance

Defrosting

Bleeding part of the moisture of cooling chambers in
form of frost and ice goes with the operation of the appli-
ance.
Thick frost and ice has an insulating effect, so it reduces
cooling efficiency as the temperature increases in the
cooling chambers, they need more energy.
At this type of appliance defrosting the cooling surface of
the refrigerator is automatic without any external interven-
tion.The thermostatic control interrupts the operation of
compressor at regular intervals for more or less time -
during this cooling is interrupted - the temperature of the
cooling surface goes above 0 °C due to interior heating
load of the compartment, so defrosting occurs. When the
surface temperature of the cooling surface has reached
+3 - +4 °C the thermostatic control restarts operation of
the system.
Melting water flows through defrost water outlet leaded
through the back into the evaporator tray maintained on
the top of compressor and evaporates due to its warmth.
Check and clean the outlet of melting water
coming during defrosting regularly - a label
inside the appliance warns you for this. If it is
clogged the melting water gathered can cause earli-
er failure as it can go to the insulating of the appli-
ance.
Clean the melting water outlet with the supplied pipe
scraper that can be seen in the figure. The pipe scraper
has to be stored in the outlet.
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The most typical case of clogging up in the melting water
outlet when you put food wrapped in some paper into the
appliance and this paper contacts back plate of the refrig-
erator and freezes to it. If you remove the food right at this
moment the paper will tear and it can cause clogging up
in the outlet by getting into it. So you are asked to be care-
ful - because of the above - when placing foods wrapped
in paper into the appliance.
In case of increased demand e.g. during heat-
waves, the refrigerator temporarily happens to
operate constantly - during this the automatic defrosting
does not work.
Remaining small ice and frost stains on back plate of the
refrigerator after defrosting period is not abnormal.
Defrosting of the freezer is automatic in this model.