Regarding your issue, please kindly check the following steps:
- Check the adapter/cord: Please try replacing the power adapter or using the adapter with your other devices to see if it works, and try it on the other outlet.
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Refill the water tank: Please make sure there is enough water in the water tank.
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Disassemble the water pump: Please try to disassemble the pump to clean the magnet rotor.
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Remove the foam filter: Please try to remove the foam filter from the water pump and see if the water flow will get stronger.
Please watch the video below to learn how to disassemble the water pump properly: