---
title: How to insert the xtender and vario expert code?
description: "The expert code is 426468 and you can insert into the rcc's menu: ⚠ Use the EXPERT level with care. Incorrect changes may lead to system malfunction. Studer is not responsible for any configuration errors on your part that will…"
url: "https://studer-innotec.com/support/faq/vario-mppt-charger-series/configuration/how-to-insert-the-xtender-and-vario-expert-code/"
updated: "2026-08-17"
category: Configuration
tags:
  - rcc 02/03
  - xtender series
  - xtender xth inverter
  - xtender xtm inverter
  - xtender xts inverter
---

# How to insert the xtender and vario expert code?

The expert code is 426468 and you can insert into the rcc's menu:

⚠ Use the EXPERT level with care. Incorrect changes may lead to system malfunction. Studer is not responsible for any configuration errors on your part that will result in a system malfunction. ⚠

![xtender_expert_code](https://studer-innotec.com/wp-content/uploads/2024/08/xtender_expert_code.gif)

INFO ONLY (460081): View-only mode. No parameter changes allowed.

BASIC (943274): Default mode. Allows basic configuration (e.g. inverter ON/OFF, power limit).

EXPERT (426468): Full access to all parameters. Reserved for qualified technicians and installers.

⚠ Use the EXPERT level with care. Incorrect changes may lead to system malfunction. Studer is not responsible for any configuration errors on your part that will result in a system malfunction. ⚠