Can the water bucket overflow if I'm not home? 23 March 2023 03:38 Updated No. All our models have a water float which is triggered to turn the dehumidifier off when the bucket is full. Related articles How long should I run my dehumidifier for? How do I set my dehumidifier target humidity? Which dehumidifier is best for me? How do I set my dehumidifier target humidity? What is ‘Hot Gas Defrost’?