R10 esc - red light on throttle??

[Shaun_TLR]

I run 2 x r10 ESC 160amp r10 speedos. I noticed the last time I raced that one of them has a red led that illuminates when you pull the throttle trigger. The other glows green, which is more intuitive and what other racers at my club expected when I asked for their advice.

I've been through the speedo settings box and there's no obvious settings that would allow for this.

Does anyone have any ideas? I'm a bit worried it could be a problem and\or cause damage eventually? Generally red lights aren't good news.

Otherwise the ESC is behaving and drives fine. Really strange??

Thanks in advance.