OPERATING PROCEDURE
PHOTOS/FIGURES
2. Removing the indoor electronic control P.C.
board, receiver P.C. board, display P.C. board,
and SW P.C. board, Wi-Fi interface
(1) Remove the panel (refer to section 1) and the corner
box.
(2) Remove the screw of the V.A. clamp. Remove the V.A.
clamp and the indoor/outdoor connecting wire. (Photo 2)
(3) Remove the screw of the electrical cover, and then
the electrical cover. (Photo 2)
(4) Disconnect the following connector (Photo 3):
<Indoor electronic control P.C. board>
CN110 (Wi-Fi interface)
(5) Remove the lead wire of the Wi-Fi interface from the
hook of the cable guide and water cut. Remove the
Wi-Fi interface.
(6) Remove the display holder and SW holder. (Photo 3)
(7) Unhook the catches , open the cover of the display
holder and remove the receiver P.C. board.
(Photo 5, 6)
(8) Unhook the catches and remove the display P.C.
board. (Photo 6)
(9) Open the SW holder and pull out the SW P.C. board.
(10) Disconnect the following connectors on the electronic
control P.C. board:
CN211 (Indoor fan motor)
CN201 (Terminal block)
CN112 (Indoor coil thermistor)
CN151 (Horizontal vane motor)
CN109 (Receiver P.C. board)
(11) Pull out the electronic control P.C. board from the
electrical box.
(12) Remove the earth wire connected to the indoor elec-
tronic control P.C. board from the electrical box. (Photo 3)
NOTE:
MSZ-AP15VGK and MSZ-AP20VGK have locking
mechanism.
Photo 2
Photo 3
Photo 4
40
SW holder
Fixing screw of the
electrical cover
Screw of the
electrical
cover
Screw of the
V.A. clamp
Display holder
Earth wire to the
indoor electronic
control P.C. board
Indoor electronic
control P.C. board
Room temperature thermistor (RT11)
Release this catch to remove the
electronic control P.C. board.
Be sure to install this thermistor in the
proper direction.
Wi-Fi interface
Wi-Fi
interface
Earth wire to the
heat exchanger
OBH838B
