What happened?
If you are printing a high-temperature filament that requires the printer grille to be closed right after making a print that requires the grille to be open, the printer sends this reminder to close the grille to ensure your print's success.
Having the grille closed is important to keep the chamber temperature and ensure that high-temperature filaments do not warp and to contain any possible odors.
Note that this message does not sense if the grille is open or not, and does not block the print from starting.
Warning name: Close chamber vents
Warning code: #31838
When receiving this warning, take the time to check if your grille is open or closed.