Mitsubishi Heavy Industries 112KXE6, Service Manual, Page: 60 / 209

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57
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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
WAIT
WAIT
(6)
Stays Off Stays Off
Stays Off Stays Off
1. Applicable model
5. Troubleshooting
All models
(In case of fuse blown, how
to check the unit before
replacement of fuse)
Diagnosis Countermeasure
Isn't
there any short circuit
between phases of noise
filter?
Replace Noise filter
Replace inverter PCB
Replace power fuse
Replace electrolytic
capacitor
Replace reactor
Isn't
there any short circuit
between phases at input
terminal of inverter
PCB?
Isn't
there any crack or damage
on power transistor module
or diode stack?
Isn't
there any anomaly on
reactor?
Isn't
there any anomaly on
electrolytic capacitor?
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
B
2. Error detection method
3. Condition of error displayed
4. Presumable cause
• Fuse blown
• Noise filter anomaly
• Anomalous connection of
wire between PCBs
• Indoor control PCB anomaly
• Remote controller anomaly
• Breakage of connecting wires
of remote controller
• Outdoor control PCB anomaly
Note: