Mitsubishi Electric MSZ-HM09NA-U1 Service Manual page 33

OPERATING PROCEDURE
6. Removing the indoor fan motor, the indoor coil
thermistor, and the line flow fan
(1) Remove the panel (Refer to 1.) and the corner box.
(2) Remove the indoor electronic control P.C. board hold-
er, the electrical box and the nozzle assembly.
(3) Remove the screws fixing the motor bed.
(4) Loosen the screw fixing the line flow fan.
(5) Remove the motor bed together with fan motor and
motor band.
(6) Release the hooks of the motor band. Remove the
motor band. Pull out the indoor fan motor.
(8) Remove the indoor coil thermistor from the heat
exchanger.
( ) Install the indoor coil thermistor in its former position
when assembling it. (Refer to Photo 9)
(9) Remove the screws fixing the left side of the heat
exchanger.
(10) Lift the heat exchanger, and pull out the line flow fan
to the lower-left.
When attaching the line flow fan, screw the line flow
fan so 5/32 inch (4 mm) gap is provided between the
right end of the line flow fan and the right wall of the
air passage of the box (Figure 1).
Figure 1
5/32 inch
(4 mm)
Photo 9
OBH746B
Indoor coil
thermistor(sub)
RT13
Indoor coil
thermistor(main)
RT12
33
PHOTOS
Photo 6
Screw of the line flow fan
Photo 7
Photo 8
Screws of the
left side of the
heat exchanger
Motor band
Screws of the
motor bed