Mitsubishi Electric MS-GH13VA, Service Manual

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10-2. MS-GH18VA MS-GH24VA MS-GH30VA
NOTE: Turn OFF the power supply before disassembly.
OPERATING PROCEDURE PHOTOS/FIGURES
1. Removing the panel
(1) Remove the horizontal vanes.
(2) Remove the screw caps of the panel. Remove the
screws of the panel.
(3) Hold the lower part of both ends of the panel and pull
it slightly toward you, and then remove the panel by
pushing it upward.
Photo 1
2. Removing the indoor electronic control P.C.
board, the power monitor receiver SW P.C.
board and the indoor terminal P.C. board
(1) Remove the panel (Refer to 1.) and the right corner
box.
(2) Remove the screw of the V.A. clamp.
Remove the V.A. clamp and the indoor/outdoor con-
necting wire. (Photo 2)
(3) Remove the screw of the electrical cover, and then
the electrical cover.
(4) Remove the earth wire connected to the indoor elec-
tronic control P.C. board from the electrical box.
(Photo 3)
(5) Remove the power monitor receiver holder.
(6) Open the rear cover of the power monitor receiver
holder and pull out the power monitor receiver SW P.C.
board.
(7) Disconnect all the connectors on the indoor electronic
control P.C. board and unhook all lead wires.
(8) Remove the screw of the terminal block on the indoor
terminal P.C. board.
(9) Remove the indoor terminal P.C. board and the indoor
electronic control P.C. board.
Photo 2
Photo 3
3. Removing the indoor electrical box
(1) Remove the panel (Refer to 1.) and the right corner
box.
(2) Remove the indoor/outdoor connecting wire. (Refer to 2.)
(3) Remove the earth wire connected to the indoor heat
exchanger from the electrical box.
(4) Remove the screw of the electrical cover and remove
the electrical cover.
(5) Disconnect all the connectors on the indoor electronic
control P.C. board and unhook all lead wires.
(6) Remove the screw fixing the electrical box, then the
upper catch of the electrical box, and pull out the
electrical box.
37
Screws of the panel
Front panel Horizontal vanes
Screw of the
electrical box
Indoor electri-
cal control P.C.
board
Earth wires
Indoor terminal
P.C. board
Upper catch
Power monitor
receiver holder
Screw of the
electrical cover
Electrical box
Screw of the
V.A. clamp
Screw of the
terminal block
OBH664B