HI I EVERYONE HAD BOUGHT THIS ESC..
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6458
now the problem that ia m facing with this is that after giving the full throttle the speed of the motor starts decreasing and
eventually the motor stops working and starts the beep  ...i have programmed it to default to factory settings and still its the same...I tried adjusting the endpoint of the throttle channel also but still it did the same thing ....i have used most of the brands of programmable esc's but its the first time i went for hk one and  i am facing this irritating problem...plz help  

I HAD EVEN TRIED IT WITH THE TESTOR STILL THE SAME PROBLEM
 

Is it doing this with a 2S battery?

BOTH 2S AND 3 S

Ok. the behavior you are describing is generally for signal loss cutoff or low voltage cutoff.

but the batteries are full charged and even tried adjusting the end point of the throttle channel

Is the esc getting hot, this could also be a case of thermal cutoff.

no its is  as cool as LIQUID NITROZENNN 

another bad news
A Wretched Mouse Ate up the Covering my Glider's wing.......    

oh no, sorry to hear that!
repair your glider, catch the mouse, tape it on the glider and take it for a ride. after that release is back in your house so that he can tell his buddies not to mess with you.
I hope there is not much damage.
About the ESC, i'm not sure what is happening. Best i can suggest is try a different motor and then try a different esc

the main  problem is with the esc...it behaves same with every motor..its showing me bloody attitude

best option-
CHANGE THE ESC >

are you using the programming card or the tx?

I am not an expart but have some observation.

The ESC is overloaded or undervoltage protection is activated surely diagonshed by the beep code.  Check without prop and then without motor.
Overload
If the beep code is like overload, first check without prop. Please check the motor and Prop combination and the mechanical load draw at that RPM from Motor Characteristic curve. The load will give you the idea about the current and you can get the ESC Instantaneous current during full throttle. If require, you have to replace the prop with suitable one.
Undervoltage
Please check the connectors and the main power cord soldered joint to ESC. The high current may drop the voltage and the ESC may sense low voltage and initiate protection.

Please post the ESC manual and your beep code sequence for our knowledge. And also the trouble shoot details.

Hope quick recovery of your ESC.
 

its the esc thats bugging...its doing the same with every motor... tried around 4 types of batteries of different capacities.....

its not getting overloaded nor its under-voltage...i guess something's gone fishy  in this hk stuff

hi Akky,
            If you have bought this ESC recently contact HK I think they have some warranty policy.

AkshayB Calling AkshayB
i bought this thing long time back..i think october 2010

Hi Akky,
            I think , you are senior Akshay.
ESC bought in Oct 2010, Try to get warranty claim on this. I presume there's no harm in doing so.

Akky,
Just try the following
1) reset the ESC to factory default
2) run at 50% of load for 2-3 min
See if you observe the same symptoms.
also is the motor or ESC or battery getting hot?

Also when you increase the throttle, are increasing gradually or abruptly? If the second option, then try to change the ESC timing and observe

done everything that people have suggested above....it runs perfect but as it reaches the end...it slows and stops gradually and yes nothing it getting hot

so lets get this straight, everything is fine until you start throttling up, and when you reach full throttle the motor slows down and starts beeping.
what happens if you keep the throttle at say 50% or 70% constant?

And what if you disconnect Motor and increase the throttle to full, slowly ?

it works ok

kalyan sir the beep comes from the motor and not esc...whats the use of esc without the motor