The Hoover S3630/46/55 Vacuum Cleaner has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Hoover might be giving you.
The cleaner is not operational.
The cleaner's suction power is insufficient.
The agitator brush roll is not functioning.
The indicator shows that the bag may be full.
The cleaner has stopped due to overheating.