Hello, my name is Rusty. Generally that's a fan issue, does it come on at all?
Hmm, if Bowflex couldn't help, I'm not sure I will be able to either. I'll open the question back up for all experts. Don't rate my answer, and you won't be charged for my time.
Hi, I'm Carl and I'll take over where Rusty left off.
ESEP or ESTP means an issue with the Safety Key. Remove the Key then reinsert it and that should take care of that error message.
If you need any clarification or additional help, please feel free to ask me.