Brandon Johnson,
Other than your shipping / Mailing address being confirmed by you for us to ensure the replacement gets shipped correctly I need you to confirm the operation of the unit you have.
The replacement sensor has been taken out of the package and tested for several instances and forced to go through some situations where it would cause a proper alarm.
The sensor is functioning normally and triggering alarms when it is suppose to give them.
The first time you install the sensor and supply power to the unit, the very first fill performed will be recorded in memory. So say that the first fill the pump runs for 3 seconds.
This system will only allow the pump to remain running for 3X's the initial amount so 9 seconds will be the limit, any run time longer than this will trigger a red flashing light with audible alarm.
Same alarm will sound when the pump starts to run dry and senses no top off water in the container. The only way to get it to stop beeping is to shut off power to the unit as this will reset the initial memory so the process will start over again.
You may have an issue with fluctuations in the water level due to filter socks or other influences that can and will cause an issue in some cases with this system.
I am trying to ensure that the issue you are experiencing is not due to another factor or misunderstanding of how the system operates as this is a common mishap with new users of this and like products that operate in similar manner. As a user of this ATO system I admit it was a bit of a learning curve as I had some issues at first due to not understanding a few aspects of the system and outside factors that can cause seemingly faults / defects.
Still I am requesting that you verify your address so that a new sensor can be sent to you, I have tested this one and ensured personally that it operated normally under many scenarios. This replacement will not come with the back side magnet as the other two you have should be ample for your needs.
I will await your response/ verification.