Cooling tray fan turns on entire time im roasting

Hi all, I began experimenting with larger batches from 600g to 815g. However, 4 roasts into a 815g batch back to back, the cooling tray fan turned on after I charged and dropped the beans in to begin roasting?! Any idea what causes this? Thanks

The only guess I have is an accidental pressing of a button on the Bullet’s control panel. Maybe F1 or F2? If I understand correctly, this only happened once? If it’s only once, and it was back to back roasting, I’d attribute it to the accidental push of a button. If it happens again, take notes of everything that you’ve done and contact support.

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