How Do I Calibrate DoorSense on My Yale Assure Lock?
- DoorSense magnet misaligned with the sensor
- Magnet not installed at the right height
- Door or frame gap too large
Problem Description
Your Yale Assure Lock is not locking or unlocking reliably when commanded. A smart lock that does not respond correctly creates a security concern and undermines the convenience of keyless entry that the Assure Lock is designed to provide. Specifically, the issue involves doorsense calibration. The steps below walk you through diagnosing the root cause and applying proven fixes so your Assure Lock works reliably again.
Why This Happens in Real Homes
DoorSense tells the lock whether the door is open or closed using a magnet in the frame, so calibration problems are almost always the magnet position or the door gap, not the lock. In real homes the magnet is mounted too high or low relative to the sensor. Align the magnet with the sensor, close the gap if the frame allows, and run the DoorSense calibration in the app.
Symptoms
- Lock does not respond to app commands
- Keypad codes stopped working
- Auto-lock feature not engaging
- Lock shows offline in the app
- Battery draining too quickly
- Lock makes grinding noise but does not engage
- Voice unlock commands fail
Recognize these? Here's what usually causes it.
Common Causes
- DoorSense magnet misaligned with the sensor
- Magnet not installed at the right height
- Door or frame gap too large
- Calibration not run after install
- Loose interior assembly shifting the sensor
- Warped door changing the gap seasonally
- Wrong magnet position for an in-swing vs out-swing door
- Firmware needing a recalibration
Most fixes happen in the first 3 steps.
Always keep a physical backup key accessible outside your home in case of total lock failure. Never perform a factory reset while locked out as this may disable all electronic access. Ensure battery level is above 50 percent before firmware updates to prevent corruption.
Tools & Requirements
Step-by-Step Solution
Install the DoorSense magnet
DoorSense is a small magnet that mounts on the door frame adjacent to the lock. The lock detects the magnet when the door is closed and reports the door as open when the magnet moves away. You have two mounting options: surface mount (adhesive pad on the frame face — quick and easy) or flush mount (drilled into the frame edge — cleaner look). The magnet must be within 1-1.5 inches of the lock body when the door is closed.
Calibrate in the Yale Access app
Open the Yale Access app, select your lock, go to Settings > DoorSense > Calibrate. The app walks you through two positions: close the door and tap Next, then open the door and tap Next. The lock records the magnetic field difference between the two states. Stand within Bluetooth range (5 feet) of the lock during calibration. After calibration completes, test by opening and closing the door — the app should update the status within 1-2 seconds.
Fix calibration failing
Calibration fails if the magnet is too far from the lock, if there is magnetic interference nearby, or if the Bluetooth connection drops mid-calibration. Move the magnet closer — it must be within 1.5 inches. Check for other magnets or metal objects near the lock (magnetic door catches, metal weather stripping). Make sure your phone stays within Bluetooth range for the entire calibration process. Try surface mounting if flush mounting is not giving consistent results.
Fix DoorSense showing wrong status after calibration
If DoorSense shows closed when the door is open (or vice versa), recalibrate. If it worked initially but became inaccurate over time, the magnet may have shifted — check its position and reattach if needed. Temperature changes can expand or contract the door frame, changing the gap between the magnet and sensor. If DoorSense is intermittent in certain seasons, adjust the magnet position for the season when the gap is largest.
Use DoorSense with Auto-Lock
After calibrating DoorSense, enable Auto-Lock in the Yale Access app. With DoorSense active, Auto-Lock waits until the door is confirmed closed before engaging the deadbolt. Set the Auto-Lock timer (1-30 minutes). DoorSense also enables open-door alerts — configure the app to notify you if the door has been open for more than a specified number of minutes. This prevents the lock from trying to lock against an open door, which wastes batteries and stalls the motor.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If the keypad rejects valid codes, a lockout timer may be running — five failed entries locks most keypads silently for 5–10 minutes.
["DoorSense uses magnet to detect door position", "Calibrate after installation"]
Most smart lock failures people label as hardware issues turn out to be a code wiped during a sync, or a setting reset nobody remembers triggering.
- DoorSense magnet misaligned with the sensor
- Magnet not installed at the right height
- Door or frame gap too large
- Calibration not run after install
- Loose interior assembly shifting the sensor
Before you go — try one of these (they fix most cases).
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Official Manufacturer Manual
If you need the complete manufacturer documentation for advanced setup, wiring diagrams, or detailed specifications, you can download the official manual below. The manual includes full technical instructions directly from the manufacturer and may help if your issue requires deeper troubleshooting.
Download the Official Yale Assure Lock ManualSource: yalehome.com
Need More Help? Yale Support
Note: The contact information below connects you directly to Yale's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
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