Levoit Core 400S how to disconnect from Wi-Fi and restore defaults
To restore the purifier's default settings and disconnect it from the VeSync app.
Steps
- Press and hold the On/Off button for 15 seconds, until the Wi-Fi indicator turns off.
- To reconnect, add the purifier again in the VeSync app.
The reset restores the purifier's default settings and disconnects it from the VeSync app.
Source: Using Your Smart Air Purifier Source: Using Your Smart Air Purifier, pp. 5, 7
Other Core 400S procedures
- How to reset the Check Filter IndicatorAfter replacing the filter while the indicator is lit, or after replacing it before the indicator lit.
- How to replace the filterWhen the Check Filter Indicator lights and the filter is clogged, noisy or loses airflow, or every 12 months.
- How to clean the pre-filterEvery 2 to 4 weeks.
- How to clean the AirSight Plus Laser Dust SensorEvery 3 months, or when the air quality ring stays red. More often in a dusty environment.
Sources
- User Manual, Core 400S smart air purifier. Arovast Corporation. Document HEAPAPLVSUS0162Y, revision A1-241202, 24 pages, en-US. levoit.com (PDF). Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.