Mitsubishi Heavy Industries FDT71VNXVD Service Manual page 68

Error code
Remote controller: E16
Note (1) Value in ( ) are for the model SRK.
1. Applicable model
FDT series only
2. Error detection method
Detected by rotation speed of
indoor fan motor
3. Condition of Error displayed
• When actual rotation speed of
indoor fan motor drops to lower
than 200rpm for 30 seconds
continuously, the compressor
and the indoor fan motor stop.
• After 2-seconds, it starts again
automatically, but if this error
occurs 4 times within 60 minutes
after the initial detection. (FDTC,
FDT series only)
4. Presumable cause
• Defective indoor power (control)
PCB
• Foreign material at rotational
area of fan propeller
• Defective fan motor
• Dust on control PCB
• Blown fuse
• External noise, surge
Note:
LED Green Red
Content
Indoor Keeps flashing (-) Stays OFF (-)
Keeps flashing Stays OFF
Outdoor
5. Troubleshooting
Diagnosis
Does any
foreign material
intervene in rotational area
of fan propeller?
NO
Does the fan
rotate smoothly when turned
by hand?
YES
（1）
Is DC280V
detected between - ( - ) of
fan motor connector
CNM (CNU)?
YES
Is the fuse F202 blown?
Power supply reset
Is it normalized?

- - - -
Indoor fan motor anomaly
(In case of FDT series)
YES
NO
Note (1) , for GND
SRK series
NO
FDTC, FDT series
NO
YES
NO
YES
'10 • PAC-SM-137$
Countermeasure
Remove foreign material.
Replace the fan motor.
Replace indoor control PCB
Check power 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