51.XX Error
Description
The product has experienced an internal hardware error.
150 Chapter 8 Solve problems
ENWW
Recommended action
Turn the product power off, wait at least 30 seconds, and then turn the product power on and wait for it to
initialize.
If you are using a surge protector, remove it. Plug the product directly into the wall socket. Turn the product
on.
If the message persists, contact HP support.