---
title: Alerts and Errors
slug: hardware/backpack-alerts-and-errors
docTags: 
createdAt: 2024-11-07T01:15:58.906Z
---

# Alerts

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If there are any alerts, a triangular yellow icon will show at the top of the touchscreen display. The icon will display the number of alerts.
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![](https://res.cloudinary.com/carbon3d/image/upload/Education/Automatic-Operation-Suite/AO%20Backpack/Alerts-Errors/Touchscreen-alerts-main-02.png)
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Click on the icon to see a detailed view of the alerts. Some alerts must be resolved before Automatic Mode can be activated.

::Image[]{src="https://res.cloudinary.com/carbon3d/image/upload/Education/Automatic-Operation-Suite/AO%20Backpack/Alerts-Errors/touchscreen-alerts-TEMP.png" size="70" width="1176" height="661" position="flex-start" showCaption="false"}

### Recover Backpack

Whenever an M3 printer with an AO Backpack is restarted/power cycled (including during and after the installation of a software update), the printer screen will display a “Backpack needs recovery” screen. 

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Press the “Recover Backpack” button on the screen to return the machine to normal operation.
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![Recover Backpack](https://res.cloudinary.com/carbon3d/image/upload/Education/Hardware/AO-Backpack/Recover-backpack.png)
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**This is expected behavior, and is not an indication of a problem with the printer, the Backpack, the power cycle, or the software update. **
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# Errors

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![](https://res.cloudinary.com/carbon3d/image/upload/Education/Automatic-Operation-Suite/AO%20Backpack/Features/touchscreen-basket-full-01.png)
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### Parts basket full

If the parts basket is full, Automatic Mode will end.

**Resolution**

Empty the parts basket.
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![](https://res.cloudinary.com/carbon3d/image/upload/Education/Automatic-Operation-Suite/AO%20Backpack/Features/touchscreen-out-of-resin-02.png)
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### Out of resin

If there is not enough resin in the tank to print the next project in the queue, Automatic Mode will end.

**Resolution**

Swap the empty resin tank for a full one.
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![](https://res.cloudinary.com/carbon3d/image/upload/Education/Automatic-Operation-Suite/AO%20Backpack/Features/Touchscreen-error-too-large-debris-02.png)
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### Large debris detected

If debris larger than **1.2 mm** is detected, Automatic Mode will end.

**Resolution**

Inspect the cassette and remove the large debris. If necessary, use the pour stand to filter the resin.


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