changed receiver re did every thing now it works. thank you Mr Pike... last up date to esc was 212 should I down load the latest or leave it alone ?

Those trouble shooting sequences is there a youtube vid or similar on that?

That would be great but they won't even power up to try and troubleshoot. They just quit working, two of them never turned back on after they were turned off. Then two of them just stopped while racing. No warning, they weren't hot or never even slowed down before they quit. Ran the speedos the year before and then last summer up until I done the firmware update. That's the only thing that all the speedos had in common.

Yes, always run the latest software.

You still have them? If so I'd like a quick test:

No fan plugged in, no sensor wire plugged in, battery power only. Power up, result?

IF you have a Hotwire does it recognize and "see" the esc?

There are some basic ones, but no video. That could get quite long lol.

Basic thing I often "go to" is to isolate the ESC from the rest of the car: Unplug it from the receiver, unplug the fan, unplug the sensor harness. Power it up. What do the LED's show you? The trouble codes we offer are very intuitive and can help you diagnose most of the system.

There is not as the added weight and size doesn't add enough value. There are other ways to calculate current that, while not as accurate, are more than adequate.

Hi there, I need some assistance if possible with my Tekin RSX.

I raced last night running a 5.5T motor and all was fine all night. Motor temps were 42C and ESC temps never went above 48C.

I was looking for more speed on the straight so all i altered was increasing the Turbo from 15 to 25 degrees and the ramp rate from 2 to 5. Motor timing unchanged from 30 degrees.

I just ran the car and the ESC cut out as it accelerated. Now it won't turn on. There is no smell of anything burnt out and no visible signs at all?

Is there a fuse or something that can be reset/swapped or is it a case of sending it in? I live in the UK and the ESC was bought second hand about 6 months ago. What is my best course of action?

There isn't a fuse, but something could have acted like one somewhere in the system. Does the radio turn on when the esc is plugged in? Do different batteries work? Can you load an older software version on the ESC or does the computer not recognize it? Can you verify the on/off switch works?

Sorry for all the questions. Just trying to eliminate other possibilities before you resort to mailing it in.

Thanks Krio,

The radio does not turn on but all is fine with another ESC plugged in. i just tested it with the same settings and it seemed fine.

A different battery makes no difference.

The ESC is recognised by the software and I am able to change settings

I tested the switch with a multi-meter and the switch is operational.

If the hotwire still talks to the esc, try downgrading and then re-uploading the firmware version. That has fixed some esc's in the past for myself and some locals. This issue was more common years ago, though. Not sure if it's still the same problem.

Thanks for replying. Unfortunately I tried downgrading to 258 and then back up to 272 but the ESC is still dead when powered via battery.

I'm guessing something popped on the power board?