If your Roku remote volume not working, don't worry! You can usually fix the issue without having to call tech support.
Here are a few troubleshooting tips:
Make sure your Roku is turned on and that the volume is turned up on the TV.
Check the batteries in the remote. They might need to be replaced.
Try unplugging the Roku and plugging it back in.
If all else fails, you might need to reset the Roku.