---
title: Which Firmware version is on my HRC 400
description: "### Which version of Firmware is your HRC 400 controller operating on? To find out which version of firmware you have on your HRC 400 controller simply follow these steps. 1. Turn the controller to \"OFF\" 2. Press the \"BACK\"…"
url: "https://husqvarna-water.com/knowledgebase/which-firmware-version-is-on-my-hrc-400/"
updated: "2024-07-02"
category: Controller / HRC 400 Series
tags:
  - Bhyve
  - Controller
  - HRC400
  - Troubleshoot
  - "Wi-fi"
---

# Which Firmware version is on my HRC 400

### Which version of Firmware is your HRC 400 controller operating on?

To find out which version of firmware you have on your HRC 400 controller simply follow these steps.

1. Turn the controller to "OFF"
2. Press the "BACK" and "PROG" buttons for a few seconds
3. The current firmware version will appear on the screen