Louver Motor Failure - Mitsubishi FDT100VNXWVH Service Manual

Error code
None
Remote control:
1. Applicable model
FDT, FDTC, FDE series
2. Error detection method
3. Condition of error displayed
4. Presumable cause
• Defective LM
• LM wire breakage
• Faulty indoor unit control
PCB
Note:
LED Green Red
Keeps flashing Stays OFF
Indoor
Keeps flashing Stays OFF
Outdoor
5. Troubleshooting
Diagnosis
▲ Check at the indoor unit side.
Operate after
waiting for more
than 1 minute.
Does the louver
operate at the power
on?
YES
Is the louver
operable with the remote
control?
LM: louver motor
87
-
Content

Louver motor failure

NO
Is LM wiring
broken?
NO
YES
Is LM locked? NO
YES
YES
NO
-
'20 • PAC-SM-351
Countermeasure
Repair wiring.
Defective indoor unit
control PCB ➞ Replace.
Replace LM.
Normal
Adjust LM lever and then
check again.