AC Charger Indicator Light Problem

Hello!
Just today, when I tried charging my 13" Macbook Aluminum (bought in March 2009), the "indicator light" wouldn't light up. I was really shocked why it was working because just last night, I was charging it and it was fine. I thought the socket was the one that wasn't working, so I tried some of our other sockets, but then, it still wasn't "lighting" up. So I gave up. Then I just tried to plug my charger the whole time with my mac, and I was surprised to see that my macbook was actually charging. Though the charging rate was like 1% per hour, more or less. However, when I checked in the AC charger information if it was really connected, this was what I saw:
AC Charger Information:
Connected: No
Charging: No
then I tried checking if the indicator was already working. And it actually was working, but the indicator light was so faint that I had to make sure the room was really dim to see the light. But the thing is, the light was green, which is not right, since it's not yet fully charged. I don't know what to do. Should I replace the charger or not? because I've read in some of the threads here that the charger is not really the problem here. I really really need your help guys
just additional info:
Charge Information:
Charge remaining (mAh): 1250
Fully charged: No
Charging: No
Full charge capacity (mAh): 3863
Health Information:
Cycle count: 183
Condition: Good
Battery Installed: Yes
Amperage (mA): 85
Voltage (mV): 11384

You need to try a different, known-good charger on your Mac. If that works, then the problem is the charger and you can replace it. If a good charger still fails to charge your MacBook, then the problem is in the MacBook itself and you will need to have it serviced.
Have you tried resetting the SMC? Doubt it will fix it, but it sometimes addresses power issues:
http://support.apple.com/kb/HT3964

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