OPERATING PROCEDURE
PHOTOS
2. Removing the indoor electronic control P.C.
board and the room temperature thermistor
(1) Remove the panel (Refer to 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.
(3) Open the indoor electronic control P.C. board holder (to
right side)
(4) Disconnect the following connectors:
<Indoor electronic control P.C. board>
CN112 (Indoor coil thermistor)
CN151 (Vane motor)
CN1R1 (Interlock switch)
CN10A (To the indoor power P.C. board)
(5) Unhook the catches of the indoor electronic control P.C.
board holder from the nozzle and the electrical box
(right side).
(6) Remove the room temperature thermistor from the
hook of the indoor electronic control P.C. board holder.
(7) Open the back side of the indoor electronic control P.C.
board holder, and remove the indoor electronic con-
trol P.C. board.
(8) Remove the room temperature thermistor from the
indoor electronic control P.C. board.
Photo 2
Photo 3
3. Remove the indoor power P.C. board, the indoor
terminal P.C. board, and the electrical box
(1) Remove the panel (Refer to 1.) and the 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) Unhook first the lower, then the upper catches of the
electrical box, and pull out the electrical box.
(5) Remove the screw of the electrical cover and remove
the electrical cover.
(6) Disconnect all the connectors on the indoor power P.C.
board and unhook all lead wires.
(7) Remove the screw of terminal block on the indoor ter-
minal P.C. board.
(8) Remove the indoor power P.C. board and the indoor
terminal P.C. board.
46
Lower catch
Indoor terminal
P.C. board
Terminal block
Indoor power
P.C. board
Catch of indoor elec-
tronic control P.C.
board holder
Upper catch
V.A. clamp
Indoor electronic control
P.C. board holder
Screw of the
electrical cover
Catch of indoor electronic
control P.C. board holder
Electrical box
Earth wire
OBH531E
Summary of Contents for MSZ-GE22VA-A1
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