Midea 22033010000701, Service Manual

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ServiceManual_2018-V1.0
36
9.5 Control of ice maker (None)
9.6 Fault code and solutions
Fault code
Failure Type
Failure Type Solution
E1
Temperature
sensor fault in
refrigerating
chamber
Temperature
value of
measurement is
＜－
50
℃
or
＞
+50
℃
Step 1: Check whether the terminal CN1 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 10.6.
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
E4
Defrost sensor
fault in
refrigerating
chamber
Temperature
value of
measurement is
＜－
50
℃
or
＞
+50
℃
Step 1: Check whether the terminal CN1 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 10.6.
Step 3: Replace main control board
Step 4: Replace electrical wiring main harness
E6
Communication
fault
Abnormal
communication
between main
control board and
display panel
Step 1: Check whether the terminal CN9 of the 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: Replace main control board.
Step 3: Replace display control board.
Step 4: Check whether the signal cables of the main
display board are connected.
E9
High
temperature
alarm
Step 1: Check whether the terminal CN2 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 temperature and humidity sensor at
the hinge, and replace the temperature and humidity
sensor.
9.7 Defrosting function(None)
9.8 Test mode(None)