Mitsubishi Heavy Industries FDT45KXE6 User Manual

Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
–
339
–
E16
Indoor fan motor anomaly
(In case of FDT)
Keeps flashing 1 time flash
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
FDT type
Diagnosis Countermeasure
NO
YES
YES
Does any
foreign material intervene
in rotational area of fan
propeller?
Is DC280V
detected between - of
fan motor connector
CNM?
Is it normalized?
Is the fuse F202 blown?
Does the fan
rotate smoothly when turned
by hand?
YES
NO
NO
NO
YES
（1）
Note (1)  for GND
NO
YES
Power supply reset
Remove foreign material.
Replace the fan motor.
Check power supply
voltage.
Replace faulty fan motor
and power PCB.
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor control PCB.)
Malfunction by temporary
noise
2. Error detection method
Detected by revolution speed of
indoor fan motor
3 . Condition of error displayed
When actual revolution speed of
indoor fan motor drops to lower
than 200rpm for 30 minutes
continuously, the compressor
and the indoor fan motor stop.
After 2-seconds delay, it starts
again automatically, but if this
anomaly occurs 4 times within
60 minutes after the initial
detection.
4. Presumable cause
• Defective indoor power PCB
• Foreign material at rotational
area of fan propeller
• Defective fan motor
• Dust on control PCB
• Blown fuse
• External noise, surge
Note:

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English