Can the water bucket overflow if I'm not home? 23 March 2023 03:39 Updated No. All our models have a water float which is triggered to turn the dehumidifier off when the bucket is full. Related articles Are dehumidifiers noisy? Can Ausclimate dehumidifiers stop mould/mildew, musty odours and condensation? What size dehumidifier do I need? Do dehumidifiers require any maintenance or cleaning? Can I use a dehumidifier as a clothes dryer?