Haier HB21FC45N Series - Control Principle of Ice-Maker

SERVICE MANUAL
Model: HB21FC45N*
24
Issue 2010-07-05
Rev. Ref1007S019V0
2.6 After 3 minutes of fan operation, the damper will open and normal cooling operation will
resume.
3. Defrost Malfunction
3.1 If the temperature at the evaporator defrost sensor does not rise above 7°C (44.6°F) after 60
minutes of the be
ginning of the defrost cycle, “Ed” willbe displayed in the refrigerator display and then disappear from
view. It can only be viewed by displaying the error codes as shown in the ERROR
CODEsection
4. Manual Defrost: Press and hold “F” and “G” and “M” 3 seconds, the product will enter manual
defrost mode and show “T2 T2”on display panel. And In this mode, the defrosting heater will work;
we could check the defrosting system. But If the temperature of defrost sensor is higher than 7 ℃,
the heater will quit after working 1minutes. Reverse heater will keep working.
Refrigerator vertical mullion heater (one on-off cycle every 15 seconds)
5-4. Working Principle of the Ice-maker
1. The automatic ice maker located in the freezer room, which can make ice cube automatically.
2. Water level adjustment
Press and hold “F”, “G”, and “J”, “K” for 3 seconds. This is a time fill. The water inlet fill time will be
shown (in seconds) in the freezer temperature display field. The factory default setting is 6.5
seconds and shown as 65 in the freezer display, during this fill time of 6.5 seconds, it will allow 110ml
water to fill into the cube tray when the water pressure is 0.5Mpa. This should fill all of the cube molds
evenly and the cubes should break apart when dumped into the ice storage bin. The local water
pressure can also effect the water fill level.
Fill Time Settings Fill time in seconds Display Shows
Minimum 4 4
4.5 45
5 5
5.5 55
Default 6 6
6.5 65
7 7
7.5 75
F G
M
F G J K