Mitsubishi Electric FDT125VNVF Technical Manual page 433

Error code
E16
Remote controller:
1. Applicable model
All models
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 300rpm for 30 seconds
continuously, the compressor
and the indoor fan motor stop.
4. Presumable cause
• Defective indoor control PCB
• Foreign material at rotational
area of fan propeller
• Defective fan motor
• Dust on indoor control PCB
• External noise, surge
Note:
RUN light TIMER light
Indoor
6 times flash ON
display
Green LED Red LED
Outdoor
Keeps flashing Stays OFF
control PCB
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
Is DC280V
detected between - of
fan motor connector
CNU?
YES
Power supply reset
Is it normalized?
432 432
- -
Content
Indoor fan motor anomaly
YES
NO
Note (1) for GND
（1）
NO
NO
YES
- -
'12 • PAC-T-174
Countermeasure
Remove foreign material.
Replace the fan motor.
Replace indoor control PCB
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor control PCB.)
Malfunction by temporary
noise