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Yale Assure Lock YRD420 - User Manual

Yale Assure Lock YRD420
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Part of ASSA ABLOYP/N YRD400-KD-0022 Rev ATrusted every day
1
Failure to follow these instructions could result in damage to the product, voiding the factory warranty and could lead to failure of the product to provide access.
Yale Assure LockĀ® 2 Keyed Deadbolt Installation Guide
(Keypad YRD410 or Touchscreen YRD420)
Notice: Before installing your lock, be sure to follow the steps on the yellow Quick Start Guide.
Tools Needed
Standard Phillips
Head Screwdriver
Tools Needed To Adjust An Existing Door
or Prep a New Door
Drill Utility
Knife
Wood
Mortise Chisel
Tape
Measure
Level
Pencil

Questions and Answers

  • N
    Nichole Norris DVMAug 16, 2025
    What to do if Yale lock does not respond and the door is locked?
    • L
      Lauren JamesAug 16, 2025
      If your Yale lock isn't responding and you can't get in, the batteries might be low. Try replacing them. You can also use your mechanical key to unlock the door.
  • J
    Jacob JonesAug 19, 2025
    What to do if Yale lock does not respond but the door is open?
    • A
      Adam JenkinsAug 19, 2025
      If your Yale lock isn't responding but the door is open: * Verify contact with the logo. * If keypad numbers are visible, check they respond when pressed. * Check the batteries are installed correctly (polarity) in the battery case. * Replace the batteries if they are dead. * Check that the keypad wire is fully connected and not pinched.
  • M
    Mark OrtizAug 22, 2025
    How to fix Yale lock when entry code will not register?
    • G
      Gregory MillerAug 22, 2025
      If your Yale lock entry code won't register: * If the low battery indicator is on, change the batteries. * Make sure your entry code is 4 to 8 digits long. * Don't use the same entry code for multiple users. * Enter the code within 5 seconds while the keypad is active.
  • R
    Renee FergusonAug 25, 2025
    What does it mean when my Yale lock responds 'Low Battery'?
    • K
      Karen SmithAug 26, 2025
      When your Yale lock indicates 'Low Battery', replace all four (4) batteries with new AA Alkaline batteries.
  • A
    allison43Aug 28, 2025
    What to do if Yale lock displays 'invalid code' error?
    • M
      Maria CampbellAug 28, 2025
      If your Yale lock displays an 'invalid code' error or times out, make sure you're entering a valid, previously programmed, 4 to 8 digit code. Also, if vacation mode is on, only an admin user can change it, so contact the admin.
  • J
    Julie HoltAug 31, 2025
    Why does my Yale lock chime but the door won't open?
    • K
      Kelly JohnsonAug 31, 2025
      If your Yale lock chimes indicating code acceptance, but the door won't open, check for any foreign objects between the door and the frame. Also, check that the wire is firmly connected to the inside lock.
  • J
    Jennifer ChristensenSep 2, 2025
    Why does Yale lock say 'Wrong number of digits'?
    • S
      Shelby HicksSep 3, 2025
      If your Yale lock responds 'Wrong number of digits', it means the digits you entered were either incorrect or incomplete. Re-enter the correct code followed by the check key.
  • M
    Miranda HernandezSep 5, 2025
    How to fix Yale deadbolt that does not extend when locking with the keypad?
    • L
      Lisa PorterSep 5, 2025
      If the deadbolt on your Yale lock doesn't extend when locking the door with the keypad, rehand the lock through the Settings Menu.
  • P
    Paula RobinsonSep 8, 2025
    Why does my Yale lock show no reaction and the lights dim?
    • K
      Kurt PetersonSep 9, 2025
      If your Yale lock is on for a while, then shows no reaction and the lights dim, the batteries probably don't have enough power. Replace them.
  • C
    cassandra73Sep 12, 2025
    Why my Yale lock operates, but makes no sound?
    • M
      Mr. Christopher SmithSep 12, 2025
      If your Yale lock operates but makes no sound, check in the Yale Access App to see if the Volume is set to off.

Summary

Remove Old Deadbolt

Check Door Measurements and Adjustments

Verify Measurements with Check Your Door Guide

Detailed guide to measure and verify door specifications for proper lock fit.

Install Deadbolt Latch and Strike Plate

Verify Exterior Keypad Bore Face Measurement

Install Mounting Plate and Keypad

Connect Wire to Interior Lock

Install Interior Lock

Install Batteries and Lock Cover

Install DoorSense Sensor

Surface Mount Installation

Details for installing the DoorSense sensor using the surface mount method.

Calibration Notes

Important notes on calibrating the lock and DoorSense for accurate readings.

Flush Mount Installation

Details for installing the DoorSense sensor using the flush mount method.

Calibrate Lock and DoorSense

Follow app instructions to calibrate the lock and DoorSense system.

General Lock Troubleshooting

Troubleshoot: Lock Unresponsive (Door Open)

Solutions for when the lock does not respond with the door accessible.

Troubleshoot: Lock Unresponsive (Door Locked)

Solutions for when the lock is unresponsive and the door is inaccessible.

Troubleshoot: Chimes, But Door Wont Open

Solutions for when the lock chimes but fails to unlock the door.

Troubleshoot: Low Battery Alert

Guidance for addressing the low battery alert from the lock.

Troubleshoot: Entry Code Registration Failure

Solutions for when entry codes fail to register or are invalid.

Troubleshoot: Invalid Code Error or Timeout

Resolving 'invalid code' errors or lock timeouts during entry code input.

Troubleshoot: Deadbolt Extension Failure

Solutions for when the deadbolt fails to extend upon locking.

Hardware Troubleshooting Guide

Troubleshoot: Grinding Deadbolt (Keypad)

Fixing deadbolt grinding issues when operated by keypad.

Troubleshoot: Deadbolt Hitting Strike Plate

Solutions for a deadbolt that strikes the strike plate upon operation.

Troubleshoot: Incomplete Deadbolt Extension

Resolving issues where the deadbolt does not extend fully.

Troubleshoot: Door Alignment Resistance

Solutions for resistance when locking due to door and latch misalignment.

Reset Lock to Factory Defaults

Yale Assure Lock YRD420 Specifications

General IconGeneral
BrandYale
ModelAssure Lock YRD420
CategoryLocks
LanguageEnglish

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