Automatic Liquid Soap Dispenser Touchless Infrared Sensor Hand Free Soap Hand Sensor Dispenser Smart Foam Machine USB Charging

Indicator light up and I can hear the noise as it works, but no foam.
—-Here’s a way to fix it:
1. Get a squeezable bottle with a long beak like a clean condiment Squeeze Bottles, add some water into it.
2. Remove the filter at the end of tube
3. Connect the bottle beak to the tube
4. Squeeze water into the tube , at the same time move hand to the sensor area to get water out. You’d better have someone by your side that could help you to pump water out.