Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 75

Error code
E16
Remote controller:
-
7-segment display:
1. Applicable model
FDT series only
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 200min -1 for 30 seconds
continuously, the compressor
and the indoor fan motor stop.
After 2-seconds delay, fan
motor starts again automatically,
but if this anomaly occurs 4
times within 60 minutes after
the initial detection.
4. Presumable cause
• Indoor fan motor anomaly
• Foreign matter at rotational
area of fan propeller
• Fan motor anomaly
• Dust on control PCB
• Blown fuse
• External noise, surge
Note:
LED Green Red
Keeps flashing 1 time flash
Indoor
Keeps flashing Stays Off
Outdoor
5. Troubleshooting
Diagnosis
Does any
foreign matter intervene
in rotational area of fan
propeller?
NO
Does the fan
rotate smoothly when turned
by hand?
YES
Is DC280V
detected between ➀-➃ of
fan motor connector
CNM?
YES
Reset the power supply and restart.
Does it become normal?
73
–
Content
Indoor fan motor anomaly
(FDT series)
YES
NO
Note ( 1 ) is GND.
➃
(1)
NO
Is the fuse F202 blown?
YES
NO
YES
–
Countermeasure
Remove foreign matter.
Replace the fan motor.
Check power supply
NO
voltage.
Replace fan motor and
power PCB.
Replace fan motor. (If
the anomaly persists after
replacing the fan motor,
replace the indoor control
PCB.)
Malfunction by temporary
noise