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August•DoorSense

Analysis by Lukas & Team

August DoorSense: Troubleshooting Incorrect 'Door Open' Status

Troubleshoot August DoorSense incorrectly reporting 'Door Open' in Canada. Fix cold weather issues, RF interference & ensure proper sensor alignment.

Frequently Asked Questions

•What type of battery does the August DoorSense use?

The August DoorSense sensor typically uses a CR2450 lithium coin cell battery.

•How do I know if my August DoorSense is misaligned?

Visually inspect the sensor and magnet. The gap should be within 1/2 inch. If the door frame is warped, the gap might be larger in some areas.

•Can cold weather affect my August DoorSense?

Yes, extreme cold can significantly reduce battery life and performance, potentially causing the 'Door Open' error.

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About Lukas & Team

Lukas leads the technical research department at Digital Home Faults. Together with a team of systems analysts, he specializes in translating complex manufacturer error codes into actionable diagnostic steps for the Canadian market.

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Pro Tip:

To quickly recalibrate the DoorSense sensor, try removing and reattaching the sensor to the door frame while the August app is open. This forces the lock to rediscover and recalibrate with the sensor, often resolving intermittent connectivity issues. Cycle the door open/close several times during recalibration.

Safety Warning:

Ensure the August Smart Lock and DoorSense sensor are securely mounted to prevent tampering or unauthorized access. Regularly review access logs in the August app. Never share your August account credentials with unauthorized individuals. Be aware of lithium battery fire risks and dispose of used batteries properly.

Solution:

1

Replace the DoorSense sensor battery with a new lithium CR2450 battery, ensuring correct polarity. Note the date of replacement. Document battery voltage using a multimeter before and after replacement.
2

Verify sensor alignment. The DoorSense sensor and magnet should be within the manufacturer's specified range (typically less than 1/2 inch). Adjust sensor or magnet position as needed.
3

Check for RF interference. Use a Wi-Fi analyzer app (available for iOS and Android) to identify potential sources of 2.4 GHz interference. Relocate interfering devices if possible. Consider using a Z-Wave repeater to strengthen the signal.
4

Perform a factory reset of the August Smart Lock and DoorSense sensor. Refer to the August support documentation for instructions.
5

Update the August Smart Lock and DoorSense sensor firmware to the latest version via the August app.
6

If the problem persists, test the DoorSense sensor with another compatible August Smart Lock to isolate the issue.
7

Inspect the door frame and strike plate for warping or damage. Address any mechanical issues that could be affecting door closure and sensor alignment.

Technical Background:

August DoorSense relies on a magnetic field to determine door state. The DoorSense sensor communicates wirelessly (likely via Bluetooth Low Energy or Z-Wave) with the August Smart Lock. The sensor measures the proximity to the magnet embedded in the door frame. Low battery in the DoorSense sensor, RF interference, or misalignment can trigger false 'Door Open' reports. Temperature fluctuations can shift the door frame, altering the sensor gap.

Symptoms:

August app consistently displays 'Door Open' status despite the door being physically closed and locked. No audible clicking or mechanical obstruction is apparent. In the app, the error log shows repeated 'DoorSense Timeout' errors. The August lock LED may blink red three times, indicating a sensor communication failure.

Common Causes:

Low battery in the DoorSense sensor, especially in cold Canadian winters, causing high impedance and signal degradation.
RF interference from other 2.4 GHz devices (Wi-Fi routers, microwave ovens, cordless phones) disrupting communication between the sensor and the lock.
Misalignment of the DoorSense sensor and the magnet due to door frame warping from seasonal temperature changes (common in older homes).
Physical obstruction or debris interfering with the magnetic field between the sensor and the magnet.
Software glitch or firmware bug in the August Smart Lock or DoorSense sensor.
Weak or intermittent wireless signal between the DoorSense sensor and the August Smart Lock, potentially exacerbated by distance or building materials.

Preventative Care:

Replace the DoorSense sensor battery annually, ideally before the onset of winter. Use only high-quality lithium batteries.
Regularly check the August app for firmware updates and install them promptly.
Monitor the wireless signal strength between the DoorSense sensor and the August Smart Lock. Consider using a Z-Wave repeater to improve signal quality.
Periodically inspect the door frame and strike plate for warping or damage. Address any mechanical issues promptly.
Clean the DoorSense sensor and magnet regularly to remove dust and debris.