Multipurpose Sensor for garage door

I am using my STS-MLT-250 on my garage door to monitor door position (axis?) and temperature. When I first installed it some years ago it worked perfectly. Since then, the battery died and I recently replaced the battery to get it working again. Now, it monitors temperature okay, but not door orientation. It shows the contact sensor as ‘open’ because I’m not using the magnet. Yes, I have the setting set for ‘garage door’.

How do I disable the contact sensor and enable the position sensor?

Thanks.