How can I reset my battery operated, non-rechargeable sensor pump?

1. Press and hold the minus button down for 10 seconds.
2. Remove the batteries from the pump. With the batteries removed, please wipe the sensor lens clean (the black tinted window behind where the soap is dispensed from). We recommend using rubbing alcohol and a micro fiber cloth to do so.
3. Place the batteries back into their respective position, checking to make sure they are in correctly.
4. Press and hold the plus button for 3-5 seconds to turn the unit on.
5. Once the unit is on, press and hold the plus button for 20 seconds or until soap is dispensed.