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August•August Lock

Analysis by Lukas & Team

August Lock: Motor Struggling - Troubleshooting Guide

Fix a struggling August smart lock motor. Diagnose battery issues, door alignment, and wireless connectivity in your Canadian smart home.

Frequently Asked Questions

•How do I recalibrate the August Lock?

Recalibration is usually done through the August app settings. Look for a 'Calibrate Lock' option and follow the on-screen instructions.

•What type of batteries are recommended for the August Lock?

Alkaline or lithium AA or CR123A batteries are recommended. Lithium batteries provide better performance in cold weather.

•How do I check the Wi-Fi signal strength to my August Connect?

Use a Wi-Fi analyzer app on your smartphone. Walk near your August Connect device and check the RSSI (Received Signal Strength Indicator) value. Aim for a value above -70 dBm.

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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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Safety Warning:

Do not attempt to disassemble the August Lock beyond battery replacement and external screw adjustments. Internal components may contain high-voltage circuits and are not user-serviceable. Ensure the August app and your smartphone are protected with strong passwords and two-factor authentication to prevent unauthorized access to your lock. Be mindful of physical tampering: check for signs of forced entry around the door frame.

Recommended Action:

1

Replace batteries with fresh, high-quality alkaline or lithium batteries. Observe polarity. If using rechargeables, confirm they are fully charged and designed for high-drain devices.
2

Inspect door alignment and deadbolt strike plate. Ensure the deadbolt moves freely into the strike plate without excessive force. Adjust the strike plate or door frame as needed. Consider using a lubricant compatible with lock mechanisms.
3

Verify Wi-Fi signal strength (RSSI) to the August Connect bridge or Z-Wave hub using a Wi-Fi analyzer app on your smartphone. Relocate the bridge/hub closer to the lock if the signal is weak (below -70 dBm).
4

Check for potential sources of RF interference near the lock and bridge/hub (e.g., microwave ovens, cordless phones, other wireless devices). Move these devices away from the lock.
5

Clean battery terminals with a cotton swab and isopropyl alcohol to remove any corrosion.
6

Perform a factory reset of the August Lock (refer to August's support documentation) and reconfigure the lock with the August app.
7

Ensure the August Lock firmware is up to date via the August app. Firmware updates often include performance enhancements and bug fixes.

Technical Background:

The August Lock relies on a motor drive circuit to actuate the deadbolt. This circuit draws power from batteries (typically AA or CR123A lithium). The motor's performance is sensitive to battery voltage, mechanical resistance in the deadbolt mechanism, and RF interference impacting communication between the lock and the August Connect Wi-Fi bridge or Z-Wave hub. Correct motor operation requires stable Zigbee/Z-Wave communication within acceptable RSSI thresholds. High levels of impedance negatively impact motor current and torque.

Symptoms:

Audible grinding or straining sound during lock/unlock operation. Visual LED indication of error (check August app for specific error codes, e.g., red flashing LED). Reduced motor speed compared to normal operation. Inconsistent locking/unlocking – sometimes works, sometimes fails. App-side error logs indicating 'Motor Failure' or 'Low Power'.

Why This Happens:

Low battery voltage, especially in cold Canadian winters (-20°C to -40°C), causing increased internal resistance (impedance) in the batteries and reduced current delivery to the motor.
Mechanical binding or misalignment of the deadbolt and strike plate due to door frame warping from seasonal temperature and humidity changes.
RF interference on the 2.4 GHz band (Wi-Fi, Bluetooth) or 900MHz (Z-Wave) impacting communication between the lock and the August Connect or Z-Wave hub.
Worn or damaged motor drive components within the lock mechanism.
Corrosion on battery terminals, increasing resistance.
Improper deadbolt size for the lock chassis, increasing mechanical load on the motor.

Technical Recommendation:

If experiencing persistent motor struggling issues, try temporarily disabling any advanced features like auto-lock or door sense to reduce the motor's workload. Check the Z-Wave regional settings in your hub (e.g., SmartThings, Hubitat) to ensure it's configured for the Canadian frequency (908.42 MHz). Interference patterns can change significantly throughout the day, so try running a Z-Wave repair/heal operation during off-peak hours (e.g., 2 AM).

Preventative Care:

Replace batteries annually, ideally before the onset of winter, using high-quality lithium batteries for best cold-weather performance.
Regularly check door alignment and deadbolt operation, especially after periods of extreme temperature changes. Lubricate the deadbolt mechanism as needed.
Monitor battery health in the August app and replace batteries proactively when the app indicates low battery level.
Keep the August Connect Wi-Fi bridge or Z-Wave hub firmware updated to the latest version.
Consider using a Z-Wave repeater to strengthen the Z-Wave signal between the lock and the hub.