Panasonic NR-BN31AS1 Service Manual page 7

Condition for fridge of freezer compartment (FC)
Standard compressor
The temperature in freezer compartment can be set from -16°C to -24°C.
It operates according to the principle of setting/deleting the request for cooling of freezer compartment.
When the temperature in the freezer compartment is equal to or rises above +1 ° C, the compressor and Fan Motor
(in normal operation) switch on or, after the expiry of Fan Motor switch-on delay time after defrosting, the Fan Motor of
freezer compartment switches on, too.
When the temperature in freezer compartment is lower than 0 ° C, the request for cooling of freezer
compartment is deleted; the compressor and Fan Motor of freezer compartment switch off.
Based on request for cooling of freezer compartment the compressor and Fan Motor of freezer compartment are
controlled.
Defrosting
Unconditional start of defrosting is installed in the following cases:
1. At switch-on of "Fast Freeze" function if the compressor of freezer compartment does not function.
2. At switch-on of "Super Cool" function if the compressor of freezer compartment does not function.
3. At switch-on of "Extreme Freeze" function if the compressor of freezer compartment does not function
4. If, at switch on of "Fast Freeze" or "Super Cool" function the compressor functions without interruption for 1
hour i.e. immediately after the first interruption of operation of compressor.
5. Always after the terminated "Super Cool", "Extreme Freeze" and "Fast Freeze" function.
6. In case when the user interrupts the "Fast Freeze" function later than in 8 h after switching-on this function.
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