SERVICE MANUAL 
Model: HB21FC45N*
20
Issue  2010-07-05 
Rev.  Ref1007S019V0 
4-4. Freezer express freeze setting 
 
 
 
The function of express freeze is to freeze the food completely in the shortest time. 
Press button E: The express freeze button indicator will light and the freezer will be in the express freeze 
mode. It will remain in this mode for 3 hours. You can press button E before 3 hours is up if you wish to 
end the express freeze mode early. 
In the express freeze mode, the evaporator fan motor will operate at HIGH speed   
4-5.Fresh food express chill setting 
 
 
 
 
Press button L: The fresh food express-chill refrigerator button indicator lamp will light and the refrigerator 
will be in the express-chill refrigerator mode. The refrigerator will stop express-chill mode if the storage 
temperature is 2°F lower than its desired temperature or after 3 hours pass, If you want the refrigerator to 
exit express-chill mode, press button L again. The express-chill button indicator will go out, and the 
refrigerator will exit express-chill. 
In the express chill mode, the evaporator fan motor will operate at HIGH speed   
4-6. Quick-ice function 
 
Press button E and M at the same time for three seconds: The indicator light button N of the water filter will 
flash, and the freezer will be in the Quick-ice mode; 24 hours later it will exit the quick-ice mode 
automatically. Press button E and M at the same time for three seconds again to exit the Quick-ice mode. 
In quick-ice mode the evaporator fan will operate on HIGH speed during this time. The temperatures in 
the Fresh Food and Freezer Compartments will be maintained at the set temperatures.