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Step 4.
Remove the fixed devices of the connectors.
Step 5.
Disconnect the connectors of fan motor, the step
motor and the T2 sensor.
Step 6.
Open the left side plate of electronic control box.
Step 7.
Open the two clips on the front of the electric
box.
Step 8.
Open the upper cover plate of electronic control
box.
Step 9.
Remove 1 screw and open the 2 clips along the
direction indicated in image below.