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2. Indoor fan does not operate (others are normal)
Can the fan be stopped by remote
control?
The microcomputer fan PWM
output (at pin ) is 1 - 5V.
Replace the microcomputer.
Replace the fan motor.
Replace the microcomputer.
Perform final operation check.
3. Air deflector does not move (others are normal)
Replace the microcomputer.
Is a voltage over 15 or below 10V
being generated on the 12V line?
Replace IC111.
Yes
Yes
Yes
Yes
No
No
No
No
Check IC711. If it is normal,
replace the air deflector motor.
Perform final operation check.
40
Are pulse signals output at
microcomputer pins [Auto
Sweep 1], [Auto Sweep
2] when auto swing is turned on
in the fan mode?
15 18
-
19 22
-
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