Edit: obvious typo on the title - problem is with Jetta not with a oven...

Hi there, I have a 2016 Jetta Sport. It's always run the fans when I lock/unlock the doors but recently it's added a couple of electronic noises.

1- a loud electric hum noise - it lasts for a couple of seconds. This is then followed by 2- a louder really angry almost alarm type buzzer noise

Both noises seem to come from the front of the engine bay near the cooling fan, but not at the exact location (hard to tell though).

I also got a CEL but jiffy lube couldn't read the code (dealer locked?)

My coolant was running low so I had the whole thing flushed. The CEL went off a few days later but came back on yesterday. I'm guessing the cooling fan could be at its end of days?

I'll try and get a video later but wondering if anyone had the same symptoms?