Possible Causes:
- Low battery voltage, exacerbated by cold Canadian winters (-20°C to -40°C) increasing internal resistance (impedance).
- Mechanical binding of the lock bolt due to door frame warping from seasonal temperature fluctuations.
- RF interference on the 2.4GHz band from other devices (Wi-Fi routers, microwave ovens).
- Corrosion on battery terminals, increasing contact resistance.
- Faulty motor drive circuit pulling excessive current.
- Firmware error leading to misinterpretation of voltage levels.