If the light is not working:
1, Try using a different wall outlet or test it with your own USB charger.
If the pump is not pumping water:
1, Disassemble the pump and clean its interior and the impeller using a brush. Most pump failures are caused by blockages.
If the water flow is weak:
1, Disassemble the pump and clean its interior and the impeller using a brush.
2, Remove both the carbon filter and sponge foam filter to see if it makes a difference.
3, Unscrew the yellow stamen lid counterclockwise or remove the entire flower spout.
Please do not hesitate to reach out to us via the Amazon messaging system or by calling our service number in our store if you have any questions.