Extremely loud fan electrics

Servus Together,

Since yesterday my x1-Carben is extremely loud.
That the movements are loud, we are all already used to,
but since yesterday, the cooler for the electronics (rigth back) is so loud that you can no longer hear movements. The fan is running at full throttle and I do not know why it is suddenly so loud.

Possibly someone already had similar experiences?
Thank you and greetings

If you mean the enclosure fan pulling air through the carbon filter it is deliberately run at 75 or 100% when printing PLA with high plate temperatures to try to keep the enclosure temperature down.

It is very loud and annoying.

It seems to be just turned on in the startup g-code. It would be better to run it according to actual enclosure temperature so opening the door and/or removing the lid would automatically reduce the need for that fan speed.

Hi!
Same issue for me, opened a ticket few days ago, they told me it’s the MC board fan who’s malfunctioning : Control Board Fan | Bambu Lab EU

Super heavy warranty procedure to follow to obtain 20€ voucher to buy a new one.