Red Power Led after Satellite L755 was shut down

Hello.
After I shutdown Windows and notebook is power off then red power led appears.
It doesn`t blink.
What does it means?
+Message was edited: model number added in subject+

Do you mean Power indicator (the second from left) or DC IN indicator (the first from left)?
The Power indicator normally glows white when the notebook is turned on.
If the unit goes into Sleep mode, the LED would flash amber.
The DC IN LED glows white when power is supplied correctly.
If the output voltage from AC adaptor is not OK, the LED flashes amber.
The meaning of Red indicator isnt known to me but I guess its hardware related issue

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