Communication error at
initial operation (2/3)
1. Applicable model
5. Troubleshooting
All models
When the fuse is blown, the
method to inspect outdoor unit
PCB before replacing the power
source fuse
Diagnosis Countermeasure
Replace the outdoor
unit PCB
NO
NO
YES
NO
Replace the outdoor
unit PCB
YES
Replace the
reactor.
YES
Is there
a short-circuit between phases of
outdoor unit PCB?
Are there
cracks or burning on the power
transistor module or diode
stack?
Is reactor the anomalous?
From previous page
Replace fuse.
2. Error detection method
3 .
Condition of error displayed
4. Presumable cause
• Blown fuse
• Faulty outdoor unit PCB
• Faulty reactor
Note:
Error code
Remote control:
LED Green Red
Indoor
Stays OFF
Keeps flashing
Content
'22 • PAC-SM-412
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67
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