---
title: Duct Clogged error
description: The Duct Clogged error can be caused by debris buildup, or improper placement of components. Follow these steps to troubleshoot and resolve the issue.
---

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# Duct Clogged error

## The Duct Clogged error is usually caused by debris in the duct or the air flap being stuck. Follow the steps below to clear it.

### Step 1: Use the declogging tool

Use the declogging tool from your accessories box to clear any debris from the duct.

Once done, press the power button to see if the error clears. If it does, you're done. If it returns, continue to Step 2.

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### Step 2: Inspect the brush roll and air flap

The brush roll needs to be properly installed to ensure smooth operation.

- **Check the brush roll.** Make sure it's seated correctly and rotates freely. [Watch the brush roll alignment video here.](https://support.maticrobots.com/hubfs/How-to%20Videos/How%20to%20replace%20brush%20roll_new2_captions.mp4)
- **Check the air flap.** This is the black rectangular flap above the brush roll. It should move up and down freely. **Check the air flap's bristles for wear.**

You can also inspect through the app:

1. Go to **Settings \> Troubleshooting Tools \> Advanced Controls**
2. Select **Routines \> Vacuum Hard Floor** from the dropdown
3. Open the cleaning head (white flap) and confirm the brush roll is spinning and the air flap is open

Press the power button to clear the error once everything looks correct.

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**Need more help?**

If you have any questions or need further assistance, please **submit a ticket in the Matic app (Settings \> Support \> Contact Us).** 

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