The indicator light is not meant to count higher than six. Once it reaches six flashes, the power pack should be reset by turning it off, waiting a few seconds and turning it back on. This is intentional - while blinking, the activation count the unit is 'disarmed' and not sensing. The count limit was therefore set at a number high enough to perform the 'tattle tale' role, but not high enough to reduce the effectiveness of the Scat Mat. The indicator light may flash once because you've just touched the mat.