Mitsubishi KXZ Series - Page 232

Error code
Remote control:
LED Green Red
Indoor
Outdoor
Content
WAIT
7-segment display:
WAIT
(2)
Keeps ashing Stays OFF
Keeps ashing Keeps ashing
1. Applicable model
5. Troubleshooting
All models
(No display on the remote
control after power ON.)
Diagnosis Countermeasure
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
No display on the remote
control after power ON.
Does
indoor green LED keep
flashing?
Does
outdoor red LED flash
2 times?
Is
the connecting wires
between indoor and outdoor
units connected
properly?
Is
AC380-415V detected
between L1-L2, L2-L3,
L3-L1 respectively at outdoor
terminal block?
Is
AC220-240V detected
between L-N at indoor
terminal block?
Is
the fuse on indoor unit
control PCB OK?
Is
DC10-11V between
X-Y at indoor unit control PCB
side when removing
remote control?
Fuse blown

Replace fuse.
Remote control wire
short-circuited.
Remote control anomaly
Indoor unit PCB anomaly
Remote control anomaly
Breakage of connecting
wires of remote control
Correct the connecting
wires properly.
Outdoor unit control PCB
anomaly

Replace it.
Breakage of connecting
wire
Noise.
Indoor unit 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 unit PCB anomaly
• Remote control anomaly
• Breakage of connecting wires
of remote control
• Outdoor unit control PCB
anomaly
Note:
-
230
-
'20 • KX-T-373