–
81
–
'14 • KX-SM-221
Error code
Remote control:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E5
–
Communication error during operation
Keeps ashing
*See below
Keeps ashing
2-time ash
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Does the
remote control
LCD becomes
normal?
Reset the power source and restart.
YES
NO
* In case that indoor red LED stays OFF
Is the
connection of signal wires
at the outdoor unit side
OK?
Is the
connection of signal wires
between indoor and outdoor
units OK?
Does the
remote control LCD
becomes normal?
Note (1) Check the connection (disconnection, looseness)
of signal wires at outdoor terminal block.
Reset the power source and restart.
Note (2) Check the connection (disconnection, looseness,
breakage) of signal wires between indoor and
outdoor units.
YES
NO
YES
NO
YES
NO
* In case that indoor red LED flashes 2 times
Repair signal wires.
Repair signal wires.
Go to the diagnosis of
(1)
Unit is normal.
(Malfunction by temporary
noise, etc.)
Outdoor control PCB anomaly
(Network communication
circuit anomaly)
→
Replace it.
Unit is normal.
(Malfunction by temporary
noise, etc.)
2. Error detection method
When the communication
between indoor and outdoor
units is interrupted for more than
2 minutes.
3
.
Condition of error displayed
When this anomaly is detected
during operation.
4. Presumable cause
• Unit address No. setting error
•
Remote control wires broken
•
Poor connection/disconnection
of remote control wires
• Indoor control PCB anomaly
Note:
When the pump down switch is turned on, communication between indoor and outdoor units is cancelled so that
"Communication error E5" will be displayed on the remote control and indoor control PCB, but this is normal.
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