Error code
Remote control:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
None
Power source system anomaly
(Power source to remote control)
Stays OFF
1. Applicable model
5. Troubleshooting
FDT, FDTC, FDK series only
Diagnosis Countermeasure
Is the connection of the
remote control's wiring OK?
X (white), Y (black)
Does resetting the
power source return
it to normal?
NO
Does the re-measured
voltage between X and Y
in the indoor terminal block
exceed 15 VDC?
YES
NO
YES
NO
NO
YES
Does the voltage
between X and Y in the
indoor terminal block
exceed 15 VDC?
Remove wire for
the remote control
Power source reset
YES
Correct.
Remote control wire
breakage?
Replace remote control.
Malfunction by temporary
noise
Defective indoor unit
control PCB
Replace.
Remote control wire
breakage?
Replace remote control.
2. Error detection method
3
.
Condition of error displayed
4. Presumable cause
• Remote control wire
breakage/short-circuit
• Defective remote control
• Malfunction by noise
• Broken harness
• Faulty indoor unit control
PCB
Note:
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228
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