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EPC - just steering but no throttle

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EPC - just steering but no throttle

Old 07-31-2011, 08:39 AM
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Default EPC - just steering but no throttle



I have a 35amp Turnigy marine ESC in a small boat. the battery is a 2600 mah 3S 40-50 discharge.

All was running fine but has no packed up. The steering still works but no throttle. When I connect the battery instead of usual three beeps I get no beeps and a red light flashes a few times.

Any ideas?</p>
Old 07-31-2011, 02:48 PM
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Default RE: EPC - just steering but no throttle

motor could be fried ? how does it smell ? try a different motor and see if it works with that.
Old 07-31-2011, 07:40 PM
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Default RE: EPC - just steering but no throttle

What does the ESC Manual have to say about it. Should have a trouble shooting section in the product manual or the manufacturers web site.

The prop turns easy, no binding or dragging?
Old 07-31-2011, 10:22 PM
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Default RE: EPC - just steering but no throttle

It should still beep and ingage with power.
Old 08-01-2011, 12:02 AM
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Default RE: EPC - just steering but no throttle

I have plugged in a different speed controller and all works fine so it must be a issue with the Marine 35amp.
Old 08-01-2011, 12:03 AM
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Default RE: EPC - just steering but no throttle

Troubleshooting just says that no power to ESC so check connections. It is getting power as the steering servo works
Old 08-01-2011, 01:32 PM
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Default RE: EPC - just steering but no throttle

That is correct, can you peel back the shrink wrap and look at any of the chip and see if any are burned or cracked down the center ? Useally you can see a hole on the top of it (chip)and then its pretty much toast.
Old 08-01-2011, 01:33 PM
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Default RE: EPC - just steering but no throttle

you could also get another esc and plug into the motor and do the opposite , if it works than process of elimination
Old 08-02-2011, 12:17 AM
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Default RE: EPC - just steering but no throttle

I have tried another EPC and it works fine so it is definately the EPC. It is just fried or can it be "reset" somehow? I would have thought that the 3 cell 2600 mah battery would be within its tolerance.
Old 08-02-2011, 05:08 AM
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Default RE: EPC - just steering but no throttle

Greg,
like you said, ESC is the problem, something went in it and even if you were to try to look at what went, its not always visible.
I had a Turnigy 70A (for my plane) and it went also the same way, no smoke, it just died.
we call them duds, it happens.
and yes, 3s is fine, just check how much Amp you are pulling. Some people have reported that they have no problems with a constant 40A.

Dan

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