Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 230

Error code
Remote control:
E47
Outdoor control PCB
Outdoor Inverter
1. Applicable model
Model FDC71VNX only
2. Error detection method
In order to prevent from
overcurrent of A/F, if the current
exceeds the specifications, it
makes the compressor stopping.
3. Condition of error displayed
• If the output current of A/
F exceeds the specifications,
it makes the compressor
stopping.
4. Presumable cause
• Defective inverter PCB
Note:
LED Green
Indoor Keeps flashing
Keeps flashing
Yellow LED
PCB
7-time flashing
5. Troubleshooting
Power source
voltage OK?
checked results of
insulation resistance and
resistance between terminals (1) of
compressor motor
Red
Content
Stays off
Inverter PCB A/F module anomaly
1-time flash
(Model FDC71VNX only)
Diagnosis
Is the
YES
Is the
OK?
(1) 1.154 or more at 20°C
YES
229
- -
'19 • PAC-T-327
Countermeasure
Check power source.
NO
Replace compressor.
NO
Defective outdoor inverter
PCB ➞ Replace.