Troubleshooting My Philips AquaTrio or AquaTrio Pro vacuum makes a loud noise If your Philips AquaTrio vacuum cleaner is making a loud noise, there might be several possible causes. See how to resolve this below. The powerful AquaTrio engine is on Your Philips AquaTrio vacuum is equipped with a very powerful engine, and this causes it to be louder than other vacuum cleaners. An object is stuck in the nozzle Your vacuum might have picked up an object (e.g. a small rock) and this could be trapped in the nozzle causing a rattling noise. Open the lid of the nozzle and remove the trapped object. The brushes are worn out When your AquaTrio brushes are worn out, your vacuum could produce a louder sound than usual. If this is the case, replace the brushes. The code number for your AquaTrio brushes is: FC8054 Please note: your AquaTrio's brushes should be replaced every 6 months. There is a technical malfunction If you have checked all of the above and your vacuum still produces a sound, then it might have a technical malfunction. In this case, please contact us.