No Display - Mitsubishi Electric FDT125VNVF Technical Manual

Error code
None
Remote controller:
1. Applicable model
All models
2. Error detection method
3. Condition of Error displayed
4. Presumable cause
• Faulty indoor control PCB
• Defective remote controller
• Broken remote controller wire
Note:
LED Green Red
Keeps flashing Stays OFF
Indoor
Keeps flashing 2 times flash
Outdoor
5. Troubleshooting
Diagnosis
Remote controller does not display
anything after the power on.
Is DC10V or
higher detected at remote controller connection
terminals?
NO
Is DC10V or higher
detected on remote controller wires if
the remote controller is
removed?
NO
Are wires
connected properly between the
indoor/outdoor units?
NO
373
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Content

No display

YES
YES
YES
-
'12 • PAC-T-174
Countermeasure
Defective remote controller
Defective remote controller
Defective connecting wire.
Defective remote controller
wire (Short-circuit, etc.)
Defective indoor control
PCB ➞ Replace.