How to do proper maintenance for my Central ac?

[sourabhkelvin]

How can i do self maintenance for my Central ac?

[Doug30293]

This forum is for service professionals who perform installations and repairs which you should not attempt without proper training.

I presume you are interested in basic homeowner procedures such as cleaning coils and replacing filters. Yes, you can and should do this, but the information you need will be found on various homeowner websites. Here is one example:

http://home.howstuffworks.com/how-to-maintain-an-air-conditioner.htm

Have fun but be careful.