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Servo Causing issue with Receiver

w0pgk

Newbie
Joined
Apr 7, 2015
Messages
8
Location
Greater Seattle Area
So, I have a Spektrum DX4C and a Savox SC-0251

Yesterday, while wheeling on some rocks, the RC just stopped responding and the ESC started beeping like I was no longer connected to my receiver.

After doing some troubleshooting, what I discovered was, while the steering servo was plugged into the receiver, the receiver lost connection to the remote. As soon as i unplugged the servo, I regained connection and everything worked, minus the servo of course.

Besides the obvious, I need a new servo, has anyone run into this problem, and does anyone know what may have happened here?

Thanks.
 
Last edited:
You don't necessarily need a new servo, but you definitely need an external BEC to run it. Savox servos are a bit more power hungry and need their own power source.
 
RX's weren't designed to handle heavy loads from crawler servos. Wire the + from the bec directly to the servo. Wire the - to the servo and rx.
 
I just had a servo winch do the same thing to me. When it was plugged in the receiver wouldn't power on like a safe mode or something. As soon as I removed the winch everything worked fine. That was with the srs4210 receiver.

I tried it with a different truck which has a sr410 receiver and as soon as the receiver got power the servo would glitch and start spinning and I had no throttle. Once removed everything went back to normal.

I believe my servo winch got water damage and the pot went bad.

In your case I would start from scratch, set all Trims to zero and rebind the radio/receiver together. Once that's done try plugging in the servo
 
I ended up just replacing the servo. I may try to warranty the old one since it is only a month old. Still not 100% sure why it would have failed.
 
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