Mitsubishi Heavy Industries FDT100VNAWVH Service Manual page 169

Error code
Indoor display
Remote control:
E51
Outdoor unit
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
• Defective outdoor fan motor
• Defective outdoor unit main
PCB
Note:
RUN light
ON
Green LED
control PCB
Keeps flashing
5. Troubleshooting
• Models FDC100-140VNA-W/VSA-W
Replace immediately the main PCB.
TIMER light
Content
4-time flash
Inverter and fan motor anomaly
Red LED
1-time flash
Diagnosis
168
- -
'19 • PAC-SM-309
Countermeasure