Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 197

Error code
Remote control:
WAIT
1. Applicable model
Models FDC71-140
2. Error detection method
3. Condition of error displayed
4. Presumable cause
• Blown fuse
• Faulty noise filter
• Faulty inverter PCB
• Faulty reactor
• Faulty electrolytic capacitor
Note:
LED Green Red
Keeps flashing Stays OFF
Indoor
Keeps flashing 2-time flash
Outdoor
5. Troubleshooting
Diagnosis
Method to check for inverter PCB before
replacement of blown power source fuse.
From previous page
Isn't there a
short-circuit between phases of the
noise filter?
NO
Isn't there a
short-circuit between phases of inverter PCB
input terminals?
NO
Isn't there
any crack, burning on the power
transistor module?
NO
Is the reactor OK?
YES
Is the
electrolytic capacitor
OK?
YES
Replace the power
source fuse.
196
-
Communication error at
Content
initial operation (3/3)
(Models FDC71-140)
YES
Replace the
noise filter.
YES
YES
Replace the
inverter PCB.
NO
Replace the reactor.
NO
Replace the electrolytic
capacitor.
-
'19 • PAC-T-327
Countermeasure