Yale YRD420-F

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P/N YRD420-KD-F Rev A

Assure Lock 2 Touch

Keyed YRD420F

Trusted Every Day

Download Yale Access App

Create an account if you don’t already have

one, and tap “Set Up a Device”.

Note: If you have an account with the August App, use the same username and

password for the Yale Access App.

Install and Set Up Your Lock

Follow the step-by-step Installation and Setup Guide in this manual, or

refer to the app installation guide with helpful videos.

Note: If you use the app, please tear off the Door Checker and the Marking

Template (pages 58) to use when prompted.

Use Your Lock

Unlock with your fingerprint, create permanent or temporary entry

codes, set up Auto-Lock and more.

ISL222500100

Other manuals for Yale YRD420-F

Installation Instructions68 pages

Questions and Answers:

C
catherineryanAug 18, 2025
What to do if my Yale Door lock does not respond?
- S
  sanchezkristinAug 18, 2025
  If your Yale door lock isn't responding, here are a few things to try: * Press the Yale logo to activate the keypad. * Make sure you're making good contact with the logo. * If the keypad numbers are visible, see if they respond when pressed. * Check that the batteries are installed correctly in the battery case and replace them if needed. * Ensure the keypad wire is fully connected and not pinched.
K
Kathryn Mclean DDSAug 20, 2025
Why does my Yale Door lock respond “Low Battery”?
- T
  Tiffany CortezAug 20, 2025
  If your Yale door lock is responding with a “Low Battery” message, replace all four batteries with new AA alkaline batteries.
P
paula10Aug 23, 2025
What to do if Yale Door lock is on for a while then shows no reaction and lights dim?
- L
  Laura JonesAug 23, 2025
  If your Yale door lock is on for a while then shows no reaction and the lights dim, the batteries may not have enough power. Replace the batteries.
O
owenchristyAug 26, 2025
Why won't my Yale Door lock entry code register?
- A
  Angela FlemingAug 26, 2025
  If your Yale door lock entry code will not register, try the following: * If the low battery indicator is lit, replace the batteries. * Verify that your entry code consists of 4 to 8 digits. * Make sure you are using different entry codes for different users. * Ensure the entry code is entered while the keypad is active (tap on the Yale logo to wake it up and enter the entry code within 5 seconds).
R
Rebecca JamesAug 28, 2025
What to do if my Yale Door lock operates to allow access but will not automatically lock?
- R
  Rachel SmithAug 28, 2025
  If your Yale door lock operates to allow access but will not automatically lock, check to see if Auto-Lock is enabled. You can also disable Auto-Lock to lock the door manually.
S
Shane FullerAug 30, 2025
What does it mean if my Yale Door lock responds “Wrong Number of Digits”?
- L
  Lori DavisAug 31, 2025
  If your Yale door lock responds “Wrong Number of Digits” upon entering an entry code and pressing the Check key, it means the digits entered were incorrect or incomplete. Re-enter the correct code followed by the Check key.
L
Lindsey PatelSep 2, 2025
What to do if my Yale Door lock displays “Invalid Code” error?
- M
  Martin MurphySep 2, 2025
  If your Yale door lock displays an “Invalid Code” error or times out without responding after entering an entry code and pressing the Check key, verify the entered code is a valid, previously programmed, 4 to 8 digit code. Also, check if vacation mode might be on. Only an admin user can switch vacation mode to normal in the app.
T
Theresa BradySep 4, 2025
What to do if my Yale Door lock chimes but the door won't open?
- C
  Cynthia NelsonSep 5, 2025
  If your Yale door lock chimes indicating code acceptance but the door will not open, check for any foreign objects between the door and frame. Also, check that the wire is firmly connected to the interior lock.
T
Terrence ShortSep 7, 2025
How to fix Yale Door lock that doesn't unlock with fingerprint?
- T
  Terry BrownSep 7, 2025
  If your Yale door lock does not unlock with your fingerprint, verify that you’re using a registered finger and make sure the finger you’re using is clean and dry.
M
Megan MillerSep 9, 2025
What to do if my Yale Door lock does not respond and the door is locked?
- L
  Linda AyalaSep 9, 2025
  If your Yale door lock does not respond and the door is locked and inaccessible, the batteries may not have enough power, so replace them. You can also use the mechanical key to unlock the door.

Yale YRD420-F Specifications

General

Brand	Yale
Model	YRD420-F
Category	Locks
Language	English

Summary

Installation and Setup Guide

Required Tools

Remove Existing Deadbolt

Check Door Measurements

Make or Adjust Holes

Install Deadbolt Latch

Install Exterior Keypad

Install Mounting Plate

Attach Wire Cable to Interior Lock

Install Interior Lock

Install Batteries and Set Up with App

Using Your Lock

Exterior Keypad Operation

Connecting to Your Lock

Resetting Your Lock to Factory Defaults

Lock Operations Troubleshooting

Lock Does Not Respond

Solutions for when the lock is unresponsive or has issues with keypad interaction.

Lock Does Not Respond - Door Locked

Troubleshooting steps for when the lock is locked and inaccessible.

Lock On, No Reaction, Lights Dim

Addresses issues where the lock is powered but shows no reaction or dim lights.

Lock Chimes, Door Wont Open

Solutions for when the lock accepts codes but the door does not open.

Lock Operates, Wont Auto-Unlock

Troubleshooting steps for when the lock allows access but does not automatically unlock.

Lock Responds Low Battery

Guidance on addressing the 'Low Battery' response and battery replacement.

Lock Operations Troubleshooting (Entry Codes)

Lock Does Not Unlock with Fingerprint

Troubleshooting for fingerprint unlocking failures, ensuring proper finger condition.

Entry Code Will Not Register

Steps to resolve issues with registering new entry codes, checking format and activation.

Invalid Code Error or Timeout

Solutions for receiving 'Invalid Code' errors or timeouts when entering codes.

Wrong Number of Digits Response

Guidance for when the lock responds with 'Wrong Number of Digits'.

Deadbolt Does Not Extend

Troubleshooting deadbolt extension issues when locking the door with the keypad.

Hardware Troubleshooting

Deadbolt Grinds or Hits Strike Plate

Deadbolt Not Fully Extending

Resistance When Locking Deadbolt

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