41
If fan motor runs
If the other indoors
begin to run
If voltage among B,
C on wired
controller is AC
15V
If voltage between
B and C on indoor
terminal block is
15V
1. Indoor PCB abnormal
2. Wiring of indoor PCB
is damaged or the port
is not inserted well
In heating mode, fan
motor not run and
"PRE HEAT"
"DEFRO8T" on LCD
of wired controller will
be light.
1. in pre-heating
startup
2. in refrigerant oil
return control of
heating mode
3. in heating defrosting
4. TC2 sensor resistor
wrong
Wiring between
indoors and wired
controller is wrong
If the indoor
motor runs
Wiring between
indoors and wired
controller is wrong
If fan motor
rotation direction
is correct
Fan capacitor abnormal
1. Filter clogged
2. Indoor heat exchanger
clogged
If indoor fan motor is
with AC 220V voltage
1. Indoor PCB abnormal
2. Wiring of indoor PCB is damaged or the port is not
inserted well
Check the power source
voltage
Remove the fan motor
wiring
If indoor motor winding
resistor is normal
Indoor motor abnormal
If capacitor
capacity is proper
Indoor fan capacitor abnormal
Wiring of indoor PCB is damaged or the port is not
inserted well
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes