I was hoping this would help but it didn't. A lot of noises can set off the spray mechanism and eventually my dog became unphased by the citronella. We used it for a couple of weeks and it stopped spraying. Yes we changed the battery...Yes we refilled it with spray...The nozzle makes a hiss like it's clogged and nothing happens. Premier really doesn't have much support through the website so I don't know what to do...