XPS 15 blinking 2 amber 1 white yet still functioning?

I previously had an XPS 15 for under a year before it broke (possibly due to overheating, Dell never told me) and they replaced it with a new one. I’ve had this new one for about a week and twice when I’ve left it alone I’ve noticed it blinking 2 amber 1 white which I know is supposed to mean CPU failure.

I can still turn on the laptop and it appears to be functioning fine, but I’m really worried it’s going to break again and I’m going to have to go through another two months without a computer.

Is there something I’m doing wrong? Is there something I should be doing because of the lights? Do I need to contact a Dell again?