TCL TAC-18CSD/XA81I

TCL Air Conditioner Service Manual
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41
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3.2.7 EF---ODU DC fan motor failure
Shut off
Check the fan blade by
hand, can it rotate freely
Re install the DC motor
Fan motor well
connect to PCB
Re-connect
1. For built-in control (5pins)
motor: check the V
m
=310V?
V
cc
=15V?
2. For external control (3pins)
motor: test voltage btw U/V/W ,
normall
y
from DC 20~200V.
Replace ODU PCB
Check the fan motor,
can it o
p
erate or not.
Replace fan motor
No
No
Yes
Yes
End
Works normal?
No
Yes
Yes
Yes
No
Yes
Yes
No
No
Works normal?
No
Works normal?
Works normal?