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3. Only indoor fan does not operate (others are normal)
:
Yes
:
Yes | Is 5V DC being generated
Is 25-35V DC being generated
4
.
between CN10 pins @ (blue) and
ope
ae pins © (blue) and
Replace the indoor fan motor.
© (red) in the "Hi" fan mode?
No
Check according to the proper
method for checking the power
circuit.
Is approx. 39V being generated
Replace ICP3.
at IC111 pin (4?
Is the microcomputer fan PWM
output (pin 6). "Hi" in the fan
mode or are pulses being output
from it?
Replace |C111.
Replace the microcomputer.
Perform final operation check.
4. Indoor fan speed does not change (others are normal)
Ye
Yes
Can the fan be stopped by remote cy The microcomputer fan PWM
>
Replace the microcomputer.
control?
output (pin 69) is "Hi".
No
,
Ne
Repiace 1C111.
Repiace the microcomputer.
Perform final operation check.
5. Air deflector does not move (others are normal):
Are pulse signals output at.
No
microcomputer pins @ - & when
SS
Replace the microcomputer.
auto swing is turned on in the
fan mode?
Yes
VW Yes
Is a voltage over 15V or below
=>
=>
10V being generated on the 12V
Replace 10111.
line?
N
—
SS
Perform final operation check.
— 178 —
Check 1C701. If it is normal,
replace the air deflector motor.
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