Haier AV08NMSETA Service Manual page 51

※3
No
If the other indoors
If fan motor runs
begin to run
Yes
Wiring between
In heating mode, fan
indoor and wired
motor not run and "PRE
controller is wrong
HEAT" "DEFROST" on
LCD of wired controller
will be light.
1. In pre-heating startup
2. In refrigerant oil return
control of heating mode
3. In feating defrosting
4. TC2 sensor resistor
wrong
If indoor fan motor is
with AC 220V voltage
Check the power source
voltage
Remove the fan motor
wiring
If indoor motor winding
resistor is normal
If voltage among
Yes
B, C on wired
controller is AC 15V
No
Yes
If the indoor
motor runs
Yes
If fan motor
rotation direction
No
is correct
1. Filter clogged
2. Indoor heat exchanger
clogged
2. Wiring of indoor PCB is damaged or the port is not
No
No
Indoor motor abnormal
Yes
If capacitor
capacity is proper
Yes
Wiring of indoor PCB is damaged or the port is
not inserted well
49 49
If voltage
No
between B and C
No
on indoor terminal
block is 15V
Yes
Wiring between indoors
and wired controller is
wrong
Fan capacitor abnormal
1. Indoor PCB abnormal
inserted well
No
Indoor fan capacitor abnormal
1. Indoor PCB abnormal
2. Wiring of indoor PCB
is damaged or the port
is not inserted well