doorbell chimes once a sec at night

[Matrop]

we've had the doorbell installed for a month, and i also have 3 cameras on the MB4540 smartbase.  the doorbell has worked fine.  2 nites ago, the chime starting sounding once per second at very low volume.  there was no motion outside.  the sprinkler was on when this happened, but i turned the device off and it stopped.  during the day, i turned the device back on, and no chime all day.  at late dusk/early darkness, the chime started again.  no people, sounds or sprinklers on to generate a reason for an alert as though someone or something was at the door.  anyone have similar issue?

[JamesC]

Matrop,

This could be an indication of a power issue with your transformer or an incompatibility with your chime box.

For more information on this, take a look here:

How do I enable Bypass Mode on my Arlo Video Doorbell?

How do I measure the voltage of my doorbell transformer?

JamesC