SV01 Pro Optical filament runout sensor not working

Just bought an SV01 pro 3 months ago, and the filament sensor keeps alerting me that there’s no filament, when there clearly is a lot of filament left and the blue light is on any help? Also, when manually feeding the filament through the sensor, it sometimes flickers, sometimes not even turning the blue light on, I’m seriously thinking about swapping it for a switch-operated one, but if there’s a way to fix the one that comes originally, it would be appreciated.


It is recommended to check whether the filament sensor connection wire is loose or broken.
If the connection wire is not a problem, the problem is usually caused by the filament sensor’s internal components being poorly contacted or damaged; in that case, you could contact the CS for a replacement.