Sensor malfunction back door

This morning a contact sensor (back door) stopped responding to open/close and ultimately went into malfunction. No physical changes to the sensor (door sensor mounted into the door and frame).
Could this be battery related? We have not received a low battery alert.

Communication problems can occur before a low battery condition, particularly where other potential issues are present, like environmental attenuation or range.

The first thing I would try is changing the batteries. Leave the batteries out for at least 60 seconds while changing them.

Seems to have resolved on its own. If the error returns I will go ahead and replace te battery.

The sensor malfunctioned again so I went ahead and replaced the battery.
Interestingly, both times it malfunctioned, the door was left partially open and the malfunction alert fired just after the notification from ADC that the sensor was open x30min.