NOTE: Remove the panel plate. Refer to the Panel Plate removal steps before disassembling electrical parts. 
Procedure Illustration
1)  Release the hooks and open the 
electronic control box cover (4 hooks).
2)  Disconnect the connector for the 
outdoor DC fan from the electronic
control board.
3)  Remove the compressor connector.
4)  Remove the two blue wires connected 
to the four way valve. 
5)  Remove the connectors of the
condenser coil temp. sensor(T3),
outdoor ambient temp. sensor(T4) and 
discharge temp. sensor(TP).
6)  Disconnect the electronic expansion 
valve wire.
7)  Disconnect the communication 
wire indoor PCB.
8)  Disconnect the PFC inductor.
9)  Remove the electronic control box.