One ESC getting overheated even in idle and when i start the motor it doesn't rotates as fast as other motors do on my quadcopter.
I am using A2212 1000KV Brushless Motor, SimonK 30A ESC.
DJI Naza M-Lite as Flight Controller
frame is F450
Battery is Orange 5200mAh 3S 40C/80C Lithium polymer battery
Transmitter is Flysky TH-9x
please help me

@ shubham....its time to replace the ESC...it may blow up any time......

The ones with the Red or Yellow heatstrink. They are crap.
Replace them with some blheli .Even a 4 in 1 will be an asset , if you are serious.

http://www.rcmarketcity.com/nebula-millimeter-20a

Try this one you can make a comfort flight

Just buy a cheap 4 in one...much better than generic esc o amazon

i am thinking to buy Hobbywing sky walker esc