Mitsubishi FDT71VH User Manual

-
92
-
'20 • PAC-SM-351
Error code
Remote control:
LED Green Red
Indoor
Outdoor
Content
WAIT
Communication error at
initial operation (1/3)
Keeps ashing
Keeps ashing
Stays OFF
2-time ash
1. Applicable model
5. Troubleshooting
Diagnosis Countermeasure
NO
NO
NO
“ ” is still displayed on the
remote control LED 2 minutes
after power ON.
YES
NO
NO
Is the outdoor
unit control green LED
flashing?
YES
YES
YES
YES
Is the indoor
unit green LED flashing?
Is the outdoor unit
control red LED flashing
twice?
Are wires
connected properly between indoor/
outdoor units?
YES
YES
NO
Is approx.
DC20V detected between ➁-➂ on
the outdoor unit terminal
block?
Is approx.
DC20V detected between ➁-➂ on
the indoor unit terminal
block?
WAIT
To next page
Defective indoor unit
control PCB
➞
Replace.
Defective indoor unit control
PCB
➞
Replace.
Defective remote control
➞
Replace.
Broken remote control wire X or
Y
➞
Replace.
Correct connection wires
between indoor and
outdoor units.
Defective outdoor unit
control PCB
➞
Replace.
Defective connection wire
(Broken)
Noise
Defective indoor unit
control PCB
➞
Replace.
2. Error detection method
3 .
Condition of error displayed
4. Presumable cause
• Faulty indoor unit control
PCB
• Defective remote control
• Broken remote control wire
• Faulty outdoor unit control
PCB
• Broken connection wires
Note:

Mitsubishi FDT71VH Specifications

General

Brand	Mitsubishi
Model	FDT71VH
Category	Air Conditioner
Language	English