Automatic Liquid Soap Dispenser Touchless Sensor, Hands-Free Handwashing Machine

Capacity: 400mLInput: Type CPower: 1.5wMode:senseSensing distance:<7cmPower: Battery RechargeableCharging: 500-1000times after usedSize: 107*70*193.6mm 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 tube3. Connect the bottle beak to the tube4. 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.