Midea 22031020000124, Service Manual

Page: 26 / 44

Service Manual , 2016-12
26 / 44
1
）
Remove two screws from the refrigerating
air duct with a cross screwdriver;
2
）
Pull all connector terminals out of the
refrigerating air duct to remove its
components;
3
）
Uncover the temperature control indication
sticker on the cover plate of the air duct;
4
）
Gently pry out the PCB installation box
with a straight screwdriver to get the
master control board and installation box
components;
5
）
Pry open the buckle of the PCB installation
box with a straight screwdriver to see the
PCB board;
6
）
Remove 2 screws using a cross screwdriver
to remove the master control board;
7
）
Pull out the connector terminal and replace
the master control board in reverse steps;
* The temperature control indication sticker is
likely to be damaged when replacing PCB, thus it
is advised to prepare one for standby before
replacement:
Main control board
display control board together