- 26 -
Closed
Open
Closed
Open
Closed
3 Times
3 Times
3 Times
3 Times
Within 1 min.
1 min.
30 sec
30 sec
30 sec
Freezer Door
or Refrigerator
Door
Buzzer
8-1-5 Alarm for Open Door
1. This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened.
2. One minute after the door is opened, the buzzer sounds three times each for ½ seconds. These tones repeat every 30
seconds.
3. The alarm is cancelled when the freezer or the refrigerator is closed while the buzzer sounds.
8-1-6 Buzzer Sound
When the button on the front Display is pushed, a Ding~ Dong~ sound is produced.
8-1-7 Defrosting (removing frost)
1. Defrosting starts each time the accumulated COMPRESSOR running time is between 7:30 and 40 hours. This time is
determined by how often and how long the doors are opened.
2. For initial power on or for restoring power, defrosting starts when the compressor running time reaches 4 hours.
3. Defrosting stops if the sensor temperature reaches 46.4°F(8°C) or more. If the sensor doesn’t reach 46.4°F(8°C) in
1 hours, the defrost mode is malfunctioning.
4. Defrosting won
’
t function if its sensor is defective (wires are cut or short circuited)
8-1-8 Electrical Parts Are Turned On Sequentially
Electrical parts such as COMP, defrosting heater, freezer FAN, etc. are turned on in the following order to prevent noise and
parts damage. Several parts are started at the same time at initial power on and are turned off together when TEST is
completed.
OPERATING
ORDERS
In
iti
a
l p
o
w
e
r o
n
Temperature of Defrosting
Sensor is 45 °C or more
(when unit is newly
purchased or when moved)
POWER
ON
In ½ second
COMP
ON
In ½ second
Freezer FAN
ON
In ½ second
Cooling FAN
ON
Temperature of defrosting
sensor is lower than 45 °C
(when power cuts, SERVICE)
POWER
ON
In ½ second
Defrosting
heater ON
In 10 second
Defrosting
heater OFF
In ½ second
COMP
ON
In ½ second
Freezer FAN
ON
In ½ second
Cooling FAN
ON
Reset to normal operation
from TEST MODE
Total Load
OFF
In 7 minute
COMP
ON
In ½ second
Freezer FAN
ON
In ½ second
Cooling FAN
ON
In
iti
a
l p
o
w
e
r o
n
°
½
In ½ second
°C
½
Содержание LBC22520TT
Страница 39: ...8 5 MAIN PWB ASSEMBLY AND PARTS LIST 8 5 1 Main PWB Assembly 39 ...
Страница 40: ...8 5 2 Replacement Parts List 40 ...
Страница 41: ...8 5 3 PWB Assembly Display and Parts List 41 ...
Страница 42: ...8 6 PWB DIAGRAM 8 6 1 PWB Main Assembly 42 ...
Страница 43: ... 43 ...
Страница 45: ...131A 149A 136C EV FREEZER PARTS CAUTION Use the part number to order part not the position number 45 ...
Страница 49: ...September 2009 MFL62526004 ...