Roborock S8
Roborock S8 Error 9: Filter magnet check
Quick answer
Use the following manufacturer checks for this exact message and model.
Editor: Feroz Sheikh · Updated · How we verify
Check your model first
These instructions cover Roborock S8. Match the full model and complete error message before continuing.
Manufacturer checks in order
- Check the filter magnet; replace the filter if missing.
Safety notes
Use the instructions for your exact robot and dock. Stop if the unit is wet, unusually hot, damaged or has a swollen battery. Contact the manufacturer; do not bypass sensors or open sealed electrical assemblies.
When to contact support
Contact Roborock if the error continues.
Before buying a part
No. An error code does not prove a part has failed or that a seller's replacement fits. Check the exact manufacturer identifier separately.
Questions about this error
Which models does this guide cover?
These instructions cover Roborock S8. Match the full model and complete error message before continuing.
Does this error prove I need to buy a replacement part?
No. An error code does not prove a part has failed or that a seller's replacement fits. Check the exact manufacturer identifier separately.
Official sources
This guide summarizes published manufacturer instructions. It does not claim a hands-on repair or physical fit test.