Error code
Remote control:
LED Green Red
Indoor
Outdoor
Content
E3/5
Outdoor unit signal line error
Keeps ashing
2-time ash
Keeps ashing
Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is the power
source to outdoor
unit OK?
Is the
Superlink communication
wire connection
OK?
Reset the power source and restart.
E3 is a communication error that occurs when communication between
indoor and outdoor units is not established at all. Once the communication
between indoor and outdoor units is established, it changes to E5.
In both cases, check signal line wired locally.
YES
Is the
outdoor unit address
set on the indoor unit
OK?
YES
Is the LED
on indoor unit control
PCB OK?
YES
Is protective
fuse for the Superlink
circuit blown?
NO
Does E3/E5 occurs?
YES
NO
NO
NO
YES
YES
NO
NO
Temporary malfunction by
noise.
Identify the source of noise
and correct it.
Change to spare circuit.
Indoor unit PCB anomaly
Replace it.
Correct it.
Correct it.
Correct it.
Outdoor unit control PCB
anomaly
Replace it.
2. Error detection method
No outdoor unit exists in the
same Superlink system.
3
.
Condition of error displayed
Same as above
4. Presumable cause
• Power is not supplied to the
outdoor unit
• Unmatch of pairing between
indoor and outdoor units
• Indoor unit PCB anomaly
• Outdoor unit control PCB
anomaly
• Missing local wiring
Note:
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120
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'20 • KX-T-347
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