Your toner is designed with a 10 point mA safety or "test" phase. If the toner does not detect adequate moisture or full contact with skin, it will not allow the toning unit to go above 10 mA's. If the toner is powered on and the user only presses the + button 1-9 times and does not go over 10, the toner will remain in that test phase and it will shut off after about 5 minutes. Press the + button repeatedly and watch the number with the mA symbol below it rise. You should aim for at least 30 mA's, but please follow your comfort level and stop when the stimulation grows uncomfortable. Conversely, you can continue raising the mA's above 30 to as high as 99 if you are comfortable doing so.