New Entry Sensor does not light up

I just installed my system today.  I have not been able to get a person at Customer Service but I have had very quick and good response from Technical Support at (855) 693-4911.  I called them through my phone app.

@kdrymer it sounds like a defective unit, so you will have to call to get it replaced.

rnunnelley,  that number is for COPS Monitoring, please don't bother them with simplisafe problems, they are for MONITORING and Emergency purposes only and have nothing to do with simplisafe "technical support".

I have several new entry sensors that cannot be added as new devices.  I have followed the instructions, but continue to get a message that the device cannot be found.  This happened with 3 of the entry sensors.  There were no problems with the other entry sensor.  The system is new.

If SS3, check your keypad (under Devices), or, if you have the interactive monitoring plan, from your online control panel (under Devices) - to see if they were already pre-entered by SS when shipped (you can also try installing them from the Devices page if they are not listed there).  If not, unfortunately, you'll have to call SS for assistance - try calling in the mornings when they first open (9 am, ET), and press #1 for sales.