Meshak
I was building a plane the other day, plugged in the battery and adjusted servos. After one minute, without applying throttle, I felt the transmitter, battery and ESC. The ESC was almost too hot to touch. It is a 30 amp ESC. I tried 2 other 30 amp ESC and results were the same. When I apply throttle, the engine seems to run great, no irregularities and instant response.

Any thoughts on whether this is normal and if not, what can be done?

Thanks
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Rcjetflyer2
It sounds like the servos are under alot of load. Were the servos constantly making a jittery noise?
Alfred Gessow Rotorcraft Center, University of Maryland
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teflondon
i have had the same problem its probably just one servo that got stuck
or you are running to much servo's or servo's that consume to much amps

your esc might be 30amp but you bec probably can't handle more than 2 amp
does a servo get hot?

or it could be your motor drawing to much amp

or its possible that nothing is wrong, all esc get hot when you use them (some more than other) most of my esc get really got when i test the motor on the ground for to long
remember that once you are flying you consume less amp and your esc gets better cooling
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Meshak
The ESC got hot even if I didn't run the motor.

There was some servo chattering going on.

I'll do two things in the next step.

I'll install ESC and motor only. Turn it on and check the temp of the ESC after 30 sec and one minute. If not hot...at one minute, I'll run it about 25% throttle and do the same.

I have extra servo's so I'll throw new ones in on the next build, assuming it's not the motor causing the heat problem.

Thanks for the replies.

Quote:
i have had the same problem its probably just one servo that got stuck
or you are running to much servo's or servo's that consume to much amps

your esc might be 30amp but you bec probably can't handle more than 2 amp
does a servo get hot?

or it could be your motor drawing to much amp

or its possible that nothing is wrong, all esc get hot when you use them (some more than other) most of my esc get really got when i test the motor on the ground for to long


remember that once you are flying you consume less amp and your esc gets better cooling
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