Ring Alarm
Door sensor alternates between open and closed after door is opened
One of my door sensors has started acting weird. After I open the door it will start alternating between open and closed even though the door is fully open and the two parts of the sensor are no where near each other. It’s been set up for over a year and working fine and nothing has changed. If I leave the door open it will eventually stop going off but it usually takes 4-5 mins. 
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31-10-2022 06:37:41
Responses (2)
- U
I have this exact problem with my 1st gen contact sensor. It was working fine for the first 6 months, then one day I opened the window and it wouldn’t stop chiming, showing the window was being opened and closed about every 4 seconds nonstop. The battery shows a full green icon and measures 2.95+ volts. The Reed switch inside works correctly when tested with a magnet and continuity tester. The range is not an issue, as it’s about 10 feet away from the base station. Removing the sensor from the system and re adding it yielded the same exact behavior: rapidly alternating open/closed signals. The troubleshooting page offered above was useless.
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01-12-2024 05:41:19
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Caitlyn_Ring
Hi @user26939. Try the troubleshooting steps outlined [here](https://support.ring.com/hc/en-us/articles/360042739451-Troubleshooting-your-Contact-Sensor-1st-generation-) if you have a 1st generation Contact Sensor or [here](https://support.ring.com/hc/en-us/articles/360042311972-Troubleshooting-Your-Contact-Sensor-2nd-generation-) if you have a 2nd generation Contact Sensor. Factory resetting the Contact Sensor and adding it back through the Ring app should help resolve and performance problems like what you're experiencing. If this persists, please give our support team a call at one of the numbers available [here](https://support.ring.com/hc/en-us/articles/213608406) so they can take a closer look with you. If you are outside of the US, please visit [here ](https://support.ring.com/hc/en-gb/articles/213608406)to see how to contact support. :)
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01-11-2022 08:09:34
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