The Hoover S1420,S1337/39 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 operating because it might not be firmly plugged in or there is no voltage in the wall plug.
The suction power of the cleaner is reduced, possibly due to a full bag, a blockage in the nozzle or hose, or a dirty secondary filter.
The cleaner's nozzle is not effectively picking up debris, which may be caused by a worn nozzle brush.
The cleaner has stopped working due to a blown fuse or tripped circuit breaker.
There is a blockage in the nozzle or hose, preventing proper airflow and cleaning efficiency.
The secondary filter is dirty, reducing the cleaner's performance.