---
title: "Troubleshooting"
slug: "troubleshooting-neo"
updated: 2025-05-16T10:54:54Z
published: 2025-05-16T10:54:54Z
canonical: "docs-linescan.alliedvision.com/troubleshooting-neo"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs-linescan.alliedvision.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting

| Status LED | Possible cause | Device error code | Action |
| --- | --- | --- | --- |
| It does **not** turn **green** immediately after switching on the power supply. | The fuse has been tripped due to an incorrect input voltage. | – | 1. Switch off the power supply. 2. Contact [service](/v1/docs/contact-and-support). |
| Yellow | The internal temperature is above the defined warning limit. | DEV_CTRL_WARNING_ TEMPERATURE_TOO_HIGH | Decrease ambient temperature and improve cooling. |
| Red | The internal temperature has reached the defined error limit. | DEV_CTRL_ERROR_ TEMPERATURE_TOO_HIGH | The camera automatically switches to safety mode and indicates an image with a pin stripe test pattern on a black background. 1. Switch off the power supply and let the camera cool down. 2. Check the ambient conditions (0 °C – 60 °C; 32 °F – 140 °F) and improve cooling. 3. Switch on the power supply. |