U-Match Series DC Inverter Service Manual
133
4.2 Indoor Unit
4.2.1 Duct type
Removal and Assembly of Fan Motor
Remarks: Before removing the fan, make sure to cut off the power firstly.
1. Unplug the motor
cables
Cut off the power supply of
indoor unit. Use screwdriver
to remove the electric box
cover and unplug the motor
cables in electric box.
2. Remove the filter
sub-assembly and air
inlet cover board
Remove the filter
sub-assembly from the air
inlet frame and use
screwdriver to remove the air
inlet cover board.
3. Remove the screws
on fan sub-assembly.
Remove the screws on fan
sub-assembly.
4. Overturn the
propeller housing
Rotate the propeller housing
to the air inlet according to
arrow direction.
5. Loosen the fan and
motor.
Use inner hexagonal
spanner to loosen the screws
on fan and remove the clamp
fixing the motor.
Firstly, disengage the motor
from motor support. Then,
sequentially disengage the
fan sub-assembly form the
motor shaft. Remove the
motor from the air inlet and
replace with new motor. In
which, for the motor with
automatic motor support, the
motor support shall be
removed in advance and
then changed to the unit.