Control-panel message Status alert Description Recommended action
the product power on and wait for
it to initialize.
Turn off the product, wait at least
25 minutes, and then turn on the
product.
If you are using a surge protector,
remove it. Plug the product
directly into the wall socket. Turn
the product power on.
If the message persists, contact
HP support. See
Service and
support on page 127.
51.XX Error
Turn off then on
The product has experienced an
internal hardware error.
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. See
Service and
support on page 127.
54.XX Error
Turn off then on
The product has experienced an
error with one of the internal
sensors.
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 power on.
If the message persists, contact
HP support. See
Service and
support on page 127.
55.X Error
Turn off then on
The product has experienced an
internal error.
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 power on.
If the message persists, contact
HP support. See
Service and
support on page 127.
57 Fan error
Turn off then on
The product has experienced a
problem with its internal fan.
Turn the product power off, wait
at least 30 seconds, and then turn
the product power on and wait for
it to initialize.
96 Chapter 10 Solve problems ENWW
