Mitsubishi Heavy Industries FDUA160AVSAVH Service Manual page 103

Error code
Indoor control PCB
Remote control: E51
Outdoor control PCB
Outdoor inverter
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
• Inverter PCB anomaly
• Power transistor anomaly
Note:
LED Green
Keeps flashing
Keeps flashing
Yellow LED
PCB
8-time flash
5. Troubleshooting
Replace inverter PCB.
Did it return?
Red
Content
Stays OFF
Inverter or power transistor anomaly
1-time flash
Diagnosis
102
- -
'21 • PAC-SM-398
Countermeasure
OK
YES
Replace power transistor.
NO