Vaddio HE120 Operating Instructions - Manual (Page 89)

89
Other settings
Safe mode
  Concerning the safe mode
The unit goes into the safe mode when the pan-tilt head
is forcibly moved by an external force or when something
impedes its rotation.
Once the safe mode has been established, some or all of the
operations will no longer be acknowledged to ensure safety
and prevent equipment damage.
  Detection of equipment trouble
When the unit has detected trouble, its functions are
shut down, then the unit is restarted or the initial setting
operation is performed, and the normal condition of the
unit is restored after about 30 seconds.
  When trouble is detected, pictures may no longer
be output for a while, but they will be restored in
5 seconds to 10 seconds.
Note
  Cooling fan
There is a cooling fan inside.
The cooling fan is a consumable part.
Replace it 3 to 5 years after installation as a general rule.
When the cooling fan malfunctions, the “Fan Error” message
is displayed when the power is turned ON.
Fan Error
When the “ Fan Error” message is displayed, request
replacement of the cooling fan.
(Whenever fan replacement is necessary, be sure to ask your
dealer.)