If the Xiaomi Smart Pet Care Air Purifier makes unusual noise during operation, please refer to the following steps:
1. Start by checking if any foreign objects have entered the device. Foreign objects, such as small debris or pet hair, could cause irregular sounds;
2. Open the filter compartment carefully and inspect for any items that can have fallen inside. Remove them gently to avoid damaging the internal components;
3. Additionally, check the particle sensor to ensure it is free from obstructions, as accumulated dust or debris can also cause operational noise. Regularly cleaning and maintaining the device, including its filter and internal components, can help prevent unusual noises.
If the noise persists after these steps, it is recommended to contact the local after-sales service center for further assistance.