Fault Code And Solutions - Midea FDB Series Service Manual

9.5 Fault code and solutions

Fault code Fault content
Temperature
sensor fault in
E1
refrigerating
chamber
Temperature
sensor fault in
E2
freezing
chamber
Defrost sensor
E5 fault in freezing
chamber
Communication
E6
fault
Ambient
E7 temperature
sensor fault
Moisture
EH
sensor error
Code
Steps for maintenance methods
visible
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
Yes
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
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 therere foreign matters on the
terminal. Pull out the defrost sensor in freezing
Yes chamber according to the method in described in
Article 8.5 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
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 therere foreign matters on the
terminal. Pull out the defrost sensor in freezing
Yes chamber according to the method in described in
Article 8.6 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
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.
Yes
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.
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
Yes
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.
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
Yes
connected.
Step 3: Replace main control board.
Step 4: Remove the temperature and humidity sensor
at the hinge, and replace the temperature and humidity
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Service Manual_2018-V1.0