Service Manual_2018-V2.0
39
Defrost sensor
fault in variable
chamber
Step 1: Check whether the terminal of defrost sensor in main control
board is welll stuck, pull out the terminal and re-stick it in place
Step 2: Check to see if there’re foreign matters on the terminal. Pull out
the defrost sensor in refrigerating chamber according to the method in
described in Article 8.6 and then inspect the sensor against the
resistance value table in 9.3
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
High temperature
alarm in freezing
chamber
Step 1:Check whether the door is tight shut.
Step 2: Check whether the power has been off for a long time.
Step 3: Check whether the compressor is not refrigerated.
Step 4: Same to E2 maintenance methods.
Circuit fault of ice
maker sensor
Step 1: Check whether the terminal ice maker sensor of main control
board is well stuck, pull out the terminal and re-stick it in place and
check if there is any foreign matter on the terminal
Step 2: Check whether the terminal of ice maker is well
Circuit fault of
ambient humidity
sensor
Step 1: Check whether the terminal ambient humidity sensor of main
control board is well stuck, pull out the terminal and re-stick it in place
and check if there is any foreign matter on the terminal
Step 2: Check whether the sensor wiring harness are connected.
Step 3: Replace main control board.
Step 4: Remove the humidity sensor, and replace the sensor.
10.4.3High temperature alarm
(1) In case of refrigerating function:
When Tf ≥ 15 °C and duration ≥ 36 hours. (< 15 °C and the duration is cleared) (It must be detected
once that the temperature of frozen sensor is lower than 10 °C for judgement), then enter the
over-temperature alarm, the high-temperature alarm indicator lights up; the buzzer sounds for 10
seconds at 1Hz frequency and then sounds for 10 seconds every 30 minutes.
The alarm is released when Tf < 12 °C. Operate any key to cancel the buzzer alarm.
(2) In case of freezing function:
When Tf ≥ -8 °C and duration ≥ 36 hours. (< -8 °C and the duration is cleared) (It must be detected
once that the temperature of frozen sensor is lower than -15 °C for judgement), then enter the
over-temperature alarm, the high-temperature alarm indicator lights up; the buzzer sounds for 10
seconds at 1Hz frequency and then sounds for 10 seconds every 30 minutes.
The alarm is released when Tf < -12 °C. Operate any key to cancel the buzzer alarm.
10.4.4Open the door to the alarm
When the door is opened, the door opening indicator light is on, and when the door is closed, the door
opening indicator light goes out;
At any time, when the door opening time of the freezing chamber is more than 5 minutes, it will enter
the door opening alarm, and the door opening alarm indicator light flashes according to 500ms
opening and 500ms closing; The buzzer sounds with frequency of once per second or pressing any
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