Setup: Yale YDD724A Fingerprint Smart Door Lock User Manual

Overview

The YDD724A Fingerprint Smart Door Lock is a digital door lock designed for convenient, keyless access on suitable wooden doors. It combines fingerprint recognition, PIN codes, RFID key tags, and mechanical-key entry with optional remote and home-network control.

It is suitable for households, offices, and rental properties that need several access methods and user credentials. Fingerprint access provides quick entry, while visitor and one-time codes help manage temporary access.

Specifications

• Model: YDD724A
• Access methods: Fingerprint, user code, RFID key tag, mechanical key, optional remote controller, and optional Yale Access app connectivity
• Power: Four 1.5V AA alkaline batteries
• Operating voltage: 4.5–6V
• Expected battery life: Approximately one year when used about 10 times per day; actual life varies with temperature, moisture, usage frequency, and battery quality
• Operating temperature: -15 to 55°C (5 to 131°F)
• Credential capacity: Up to 100 fingerprints, 100 user codes, and 100 RFID key tags
• Visitor code: One active four-digit code
• One-time code: One active four-digit code, automatically removed after use
• Front body size: 66(W) × 176(H) × 31.5(D) mm
• Main body size: 70(W) × 170(H) × 35(D) mm
• Front body material: Zinc die-casting
• Main body material: ALDC
• Emergency power: External 9V alkaline battery connection
• Optional accessories: Remote controller, remote-control module, Bluetooth module, and home-network controller

What Is Included

• Front body
• Main body
• Main bracket
• Deadbolt and strike plate
• Mechanical keys
• Four RFID key tags
• Four AA alkaline batteries
• Screws
• User manual
• Installation guide
• Optional remote controller and related modules, when supplied

Check the package before installation. Optional accessories can vary by country and local availability.

Parts and Controls

The front body is installed on the outside of the door. It contains the fingerprint sensor, 10-key touch keypad, RFID key-tag reader, deadbolt jam indicator, low-battery indicator, and the mechanical-key emergency access area.

The main body is fitted on the inside of the door. Its controls include the thumb-turn knob, battery cover, Open/Close button, registration button, and an optional module slot.

• Fingerprint sensor: Reads registered fingerprints for authentication.
• Keypad: Accepts PIN codes and controls settings.
• RFID reader: Detects registered RFID key tags.
• Deadbolt jam lamp: Indicates a possible obstruction or locking issue.
• Low-battery indicator: Warns when the batteries need replacement.
• Emergency power terminal: Accepts a 9V alkaline battery when the internal batteries are discharged.
• Thumb-turn knob: Manually operates the lock from inside.
• Open/Close button: Operates the lock from the interior and controls some special functions.
• Registration button: Starts or completes credential and feature setup.

Safety

• Install the lock indoors or in a protected door location; do not expose it to an outdoor environment or severe condensation.
• Do not disassemble the digital lock yourself. Incorrect handling can cause electric shock or product damage.
• Do not strike, press, or force the lock with tools.
• Use only alkaline batteries. Do not install rechargeable batteries.
• Replace all four batteries together when the keypad LED flashes red or a low-battery message is announced.
• Use the correct battery type. An incorrectly fitted battery can create an explosion risk.
• Keep the door fully closed and confirm that it is locked before leaving.
• In manual-lock mode, check the deadbolt position after locking.
• Keep PIN entries private because another person may be able to observe the keypad.
• When external forced lock is active, unlocking from outside can trigger the alarm.
• Dispose of used batteries through the applicable recycling or waste-handling program.

Setup and Operation

Install the Batteries

Open the battery cover on the main body and fit four 1.5V AA alkaline batteries. Replace all four batteries if the low-battery indicator appears or the voice guidance announces a low-battery condition. Battery performance depends on the environment, usage, and battery quality.

Credential Rules

User codes contain 4–10 digits. Visitor codes and one-time codes contain exactly four digits. User slot numbers use two digits: slots 01 through 99 are available, and slot 00 identifies the 100th user position.

Master mode reserves settings control for the administrator. Normal mode allows a person who knows the user code to change supported settings. A visitor code provides door access without permission to modify settings. A one-time code works once and is then deleted automatically.

Register a User Code

1. Touch the front keypad with your palm to start.
2. Press the keypad button as directed by the voice guidance.
3. Press the registration button when the procedure requires it.
4. Enter a new 4–10 digit user code.
5. Follow the confirmation prompts to complete registration.

Register Fingerprints

1. Start the registration process from the keypad and registration button.
2. Place the same finger on the fingerprint sensor as prompted.
3. Repeat the scan sequence until the lock confirms completion. The registration process uses eight scans.
4. Assign the fingerprint to an available two-digit user slot when required.

The lock can store up to 100 user fingerprints. For reliable recognition, keep the sensor and registered finger clean and place the finger naturally over the sensing area.

Register RFID Key Tags

1. Start RFID registration through the keypad and registration button.
2. Present the RFID key tag to the reader when prompted.
3. Wait for the confirmation tone before removing the tag.

Up to 100 RFID key tags can be registered individually.

Use Master Mode

Master mode gives the designated administrator control over credential registration, deletion, volume, automatic locking, language, forced-lock functions, Bluetooth settings, remote controllers, and home-network controllers.

Changing between master mode and normal mode deletes registered passwords and other credentials. Plan the change before using it and register the required access methods again afterward.

Use Normal Mode

Normal mode is intended for convenient operation when there is no separate administrator. A person with the user PIN can manage supported settings. If app registration is unavailable in normal mode, switch to master mode and use the master PIN during app setup. Registering or deleting the app can also remove existing credentials.

Unlock with a Fingerprint

1. Touch the registered finger to the fingerprint sensor for about one second.
2. Wait for the scan-complete indication.
3. Operate the door after the lock releases.

Unlock with a PIN Code

1. Touch the front keypad with your palm.
2. Enter the registered user code.
3. Touch the keypad with your palm again if prompted.
4. Open the door after authentication succeeds.

Use Fake PIN Code Security

Fake PIN entry helps conceal the real code from observers. Enter additional numbers before or after the valid user code, then complete the keypad sequence as instructed by the lock. There is no fixed digit limit for the extra numbers, provided the complete entry follows the lock’s operating prompts.

Unlock with an RFID Key Tag

Touch a registered RFID key tag to the reader on the front body. When authentication succeeds, open the door promptly.

Use Mechanical-Key Entry

If electronic access is unavailable, use a supplied mechanical key through the emergency key opening. Mechanical keys provide a backup method when batteries are discharged or electronic authentication cannot be completed.

Automatic and Manual Locking

In automatic-lock mode, the built-in sensor locks the door within approximately five seconds after the door closes. Always verify that the door is fully closed and the deadbolt has extended.

In manual-lock mode, touch the front keypad gently with your palm to lock the door from outside. From inside, turn the thumb-turn knob toward the direction marked “Close.”

Open and Close the Door from Inside

Press the Open/Close button or turn the interior thumb-turn knob toward “Open” to release the lock. To secure the door manually, turn the knob toward “Close.” The Open/Close button can also be used for interior operation and selected forced-lock procedures.

Internal Forced Lock

Internal forced lock disables outside authentication methods such as fingerprints and PIN codes. Press and hold the inside Open/Close button for about three seconds until the confirmation tone sounds, or use the interior thumb-turn procedure described by the voice guidance.

External Forced Lock

External forced lock warns against unauthorized interior opening. Enable it by authenticating from outside with a registered fingerprint, RFID key tag, or user code and holding the relevant control until three beeps sound. If someone turns the inside thumb-turn knob while this function is active, the alarm sounds.

A valid outside authentication releases the external forced-lock condition. The function can also be disabled through the corresponding settings procedure.

Three-Minute Lockout

Five unsuccessful attempts using an invalid code or fingerprint activate a three-minute lockout. During this period, external access methods are disabled. This feature helps deter repeated guessing and unauthorized attempts.

Alarm Functions

• Intrusion alarm: Sounds when an attempt is made to force the door open or create a gap while it is locked.
• Breakage alarm: Sounds if the external front body is forcibly separated from the main assembly.
• Forced-lock alarm: Sounds when the interior thumb turn is operated while external forced lock is active.

To stop an alarm, use a valid registered credential, press the Open/Close button, or use the mechanical key as applicable to the alarm condition. The manual also describes holding the inside Open/Close button for five seconds as an alarm-control action.

Volume and Language

Voice guidance can be set to high, low, or mute. Available language choices include Korean, Chinese, English, and Taiwanese. Use the settings menu and follow the voice prompts to select the preferred option.

Optional Connectivity

The optional Bluetooth or network module allows the lock to connect with the Yale Access app or a compatible home network controller. A remote controller can also be registered for wireless operation, with up to five remote controllers supported.

Install the required module before attempting remote or home-network functions. App registration may change a normal-mode user code into a master code, and changing modes or registering or deleting app access removes existing credentials.

Cleaning and Maintenance

• Do not spray water directly onto the lock.
• Do not clean the product with benzene, gasoline, alcohol, solvents, or similar chemicals.
• Keep the fingerprint sensor, keypad, and RFID reader free from dirt and moisture using a soft, dry cloth.
• Replace all four batteries together rather than mixing old and new cells.
• Change user codes periodically to improve access security.
• Check the deadbolt and strike area for obstruction if the jam indicator appears or the lock does not extend smoothly.

Troubleshooting

The Lock Does Not Unlock

• Confirm that the fingerprint, PIN code, or RFID tag is registered.
• Wait until the three-minute lockout expires if five invalid attempts have occurred.
• Check whether internal forced lock is active; outside authentication will not work while it is enabled.
• Use the mechanical key if the batteries are discharged or electronic authentication is unavailable.

The Batteries Are Discharged

Hold a 9V alkaline battery against the emergency power terminals on the front body, then authenticate with a registered method. Replace all four internal batteries with new alkaline AA batteries as soon as the door is open.

The Door Will Not Lock

• Confirm that the door is completely closed.
• Check for an obstruction around the deadbolt and strike plate.
• In manual mode, turn the interior thumb-turn knob fully toward “Close.”
• Do not force the deadbolt with a tool.

The Alarm Sounds

Check whether the door has been forced, the front body has been disturbed, or external forced lock is active. Use a valid credential, the Open/Close control, or the mechanical key according to the applicable alarm condition.

Pros & Cons

Pros

• Fast fingerprint access with several backup entry methods.
• Large capacity for fingerprints, PIN codes, and RFID key tags.
• Visitor and one-time codes support temporary access.
• Automatic locking, fake PIN protection, forced-lock functions, and intrusion alerts improve security.
• Emergency 9V power and mechanical-key override help prevent lockouts.
• Optional app, remote-controller, Bluetooth, and home-network features expand control options.

Cons

• Optional modules and remote accessories may not be available in every market.
• Changing operating modes deletes existing credentials.
• Battery life varies with conditions and usage.
• Manual-lock operation requires the user to verify that the door is fully secured.
• The lock requires careful protection from water, solvents, excessive humidity, and extreme environments.

Final Takeaway

The YDD724A Fingerprint Smart Door Lock provides flexible keyless entry for users who want biometric access without giving up PIN, RFID, or mechanical-key backup. Correct battery selection, careful credential management, and regular checks of the door and deadbolt are essential for dependable operation.