Mitsubishi Electric SRK100VNPZJX, Technical Manual

Page: 426 / 509

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WAIT
Communication error at
initial operation (3/3)
– –
Keeps flashing 2 times flash
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
NO
YES
NO
YES
YES
NO
YES
NO
Replace the
noise filter.
Method to check for inverter PCB before
replacement of blown power supply fuse.
Replace the
inverter PCB.
Replace the reactor.
Replace the electrolytic
capacitor.
NO
Replace the power
supply fuse.
YES
Isn’t there a
short-circuit between phases of the
noise filter?
Isn’t there a
short-circuit between phases of inverter PCB
input terminals?
Isn’t there
any crack, burning on the power
transistor module?
Is the reactor OK?
Is the
electrolytic capacitor
OK?
From previous
page
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:
Error code
Remote controller:
Indoor
display
RUN light TIMER light
Green LED Red LED
Outdoor
control PCB
Content
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'12 • PAC-T-174