Midea 22031020000054, Service Manual

Page: 30 / 46

Service Manual , 2016-12
30 / 46
Display
At the first time of power-on, the display screen (including button light)
will be bright for 3 seconds and then press the middle gear to show
operation
Normal operation displayWhen failure occurs, the corresponding LED
light group will display fault code (circular display);If no failure occurs,
the current operation gear will be displayed.
9.2 Setting of the gear
Press the
gear setting button “SET”
once, the gear will be changed once; 25 seconds after
setting the gear, the refrigerator will be running in accordance with the set value.
The gear can be set to: (The set temperature will be reduced by 1°C and it can be set
circularly)
9.3 Control of standby function(None)
9.4 Control of ice maker(None)
9.5 Fault code and solutions
Fault code Fault content Code
visible Display Steps for maintenance methods
E1 Temperature
sensor fault in
refrigerating
chamber
Yes
“On” of LED1
and
LED2
simultaneously
Step 1: Check whether the terminal CN3 is well 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 refrigerating sensor according to
the method in described in Article 8.4 and then inspect
the sensor against the resistance value table in 10.8.
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
E5 Fault of F frost
sensor
Yes
“On” of LED1
and
LED3
simultaneously
Step 1: Check whether the terminal CN3 is well 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 freezing
chamber according to the method in described in
Article 8.4 and then inspect the sensor against the
resistance value table in 10.8.
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
E7 Ambient
temperature
sensor fault
Yes
“On” of LED1
and
LED4
simultaneously
Step 1: Check whether the terminal CN3 of main
control board is well 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 freezing
chamber according to the method in described in
Article 8.4 and then inspect the sensor against the
resistance value table in 10.8.
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
1Gear 2 Gear 3 Gear 4 Gear 5 Gear