---
title: Lock the HRC 400 User interface
description: "The HRC 400 user interface can be disabled thus requiring the user to use the B-hyve or B-hyve Pro app. To lock the user interface hold the \"Back\" button for about 5 seconds. A padlock icon will appear indicating the…"
url: "https://husqvarna-water.com/knowledgebase/lock-the-hrc-400-user-interface/"
updated: "2024-07-02"
category: Controller / HRC 400 Series
tags:
  - Controller
  - HRC400
---

# Lock the HRC 400 User interface

The HRC 400 user interface can be disabled thus requiring the user to use the B-hyve or B-hyve Pro app.

To lock the user interface hold the "Back" button for about 5 seconds. A padlock icon will appear indicating the buttons and dial have been disabled. The LCD screen will still display current events and operate normally.

*NOTE: The "Factory Reset" button will still operate while the user interface is locked.*

The user interface can be unlocked by holding the "Back" button for about 5 seconds. The padlock icon will disappear indicating the buttons and dial have been enabled.