E51 Inverter And Fan Motor Anomaly - Mitsubishi Heavy Industries FDT100VNAWVH Service Manual

Error code
Remote control:
E51
Indoor unit
control PCB
Outdoor unit
control PCB
1. Applicable model
All models
2. Error detection method
When power transistor anomaly
is detected for 15 minutes
continuously
3. Condition of error displayed
Same as above
4. Presumable cause
• Outdoor fan motor anomaly
• Outdoor unit main PCB
anomaly
Note:
LED Green
Keeps flashing
Keeps flashing
5. Troubleshooting
• Models FDC100-140VNA-W/VSA-W
Replace immediately the main PCB.
Red
Content
Stays OFF
Inverter and fan motor anomaly
1-time flash
Diagnosis
125
- -
'19 • PAC-SM-309
Countermeasure