Error code
Remote control:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
'14 • KX-SM-221
(1)
Keeps ashing
Stays OFF
Keeps ashing Keeps ashing
1. Applicable model
5. Troubleshooting
All models
(In case that is kept
on displaying on the remote
control for more than 2 minutes
after power ON.)
Diagnosis Countermeasure
NO
NO
NO
NO
NO
NO
NO
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
is kept on
displaying on the remote
control for more than 2
minutes after power ON.
Once turn OFF the breaker
and turn ON it again at 3
minutes after power OFF.
Isn't
the power fuse (5A) on the
outdoor control PCB
blown?
Is
the connection of wire
between noise filter and
inverter PCBs OK?
Are
the wires between indoor
and outdoor units
connected properly ?
Is
AC220-240V detected
between L-N at indoor
terminal block?
Is
AC380-415V detected
between L1-L2, L2-L3, L3-L1
respectively at outdoor
terminal block?
Does
indoor green LED keep
flashing?
Does
indoor green LED flash
2 times?
Is
AC380-415V detected at
the secondary side of
noise filter PCB terminal?
Does it become normal?
Replace fuse
Refer next page.
WAIT
Replace noise lter PCB.
Connect wires correctly.
Indoor control PCB anomaly
Replace it.
Indoor/outdoor control PCB
anomaly
Replace it.
Remote control anomaly
Replace it.
Breakage of wires for remote
control
Replace it.
Correct the connecting wires
between indoor and outdoor
units.
Outdoor control PCB anomaly
Replace it.
Breakage of connecting wire
Noise.
Indoor control PCB anomaly
Replace it.
2. Error detection method
3
.
Condition of error displayed
4. Presumable cause
• Fuse blown
• Noise filter anomaly
• Anomalous connection of
wire between PCBs
• Indoor control PCB anomaly
• Remote control anomaly
• Breakage of connecting wires
of remote control
• Outdoor control PCB anomaly
Note:
(1)
When anomaly occurs during establishing communication between indoor and outdoor unit, error code E5 is displayed (outdoor red
LED
ash 2-times).
In case of E5, the way of troubleshooting is same as above mentioned (except for checking of connecting wire).
When reset the power after E5 occurs, if this anomaly recurs, is displayed on remote control. If power ON/OFF is repeated in
a short period (within 1 minute), may be displayed. In such case, please wait for 3 minute after the power breaker OFF.
(2)
If any error is detected 30 minutes after displaying “ ” on the remote control, the display changes to “INSPECT I/U”.
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