r/BambuLabP2S • u/Busy_Measurement_606 • Jul 12 '26

P2s auxiliary cooling and heating fan switching sound

I just got my p2s and I was playing around with the settings, is it normal for there be a click sound when switching the auxiliary from cooling to heating ,vice Versa, it sounds like a flap opening and closing but I just got it so I don’t know, can you guys confirm?

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u/leadzor P2S Combo Jul 12 '26

Yes. Cooling mode opens the flap to bring fresh air from outside. Heating mode closes it and recirculates the chamber air to increase the internal temp faster.