---
title: Maintenance
description: "### Change fuse ![](https://faqdoc.info/wp-content/uploads/2023/11/137332_23xx_EA_Warnung.svg) **Warning! Electrical voltage! Danger to life!** Before opening, de-energize the base and secure it against re-energization. Disconnect any external voltages connected to the unit and secure it against accidental re-energization. Determine the cause of the fuse…"
url: "https://faqdoc.info/en/systemauswahl/alpha-direct-en/uncategorized/maintenance-2/"
updated: "2026-09-30"
---

# Maintenance

### Change fuse

![](https://faqdoc.info/wp-content/uploads/2023/11/137332_23xx_EA_Warnung.svg)
**Warning! Electrical voltage! Danger to life!**
Before opening, de-energize the base and secure it against re-energization.
Disconnect any external voltages connected to the unit and secure it against accidental re-energization.
Determine the cause of the fuse failure.

![](https://faqdoc.info/wp-content/uploads/2024/04/137332_2407_EA_AdBB_Bx1902-08N2_Sicherung-01-1.svg)

### Cleaning

Use a dry, solvent-free, soft cloth for cleaning.