Faults
401
Maintenance and
cleaning
The product is maintenance-free.
CAUTION! Never submerse
the product in water or other
liquids. Do not allow any
moisture to penetrate into the
product during cleaning.
Clean the laser beam output
opening
lens
34 GB/IE/NI
Cause
Hardware
failure
and the receiver
2
with a gentle air
1
Solution
If the icon
appears despite
repeated
switching on
and off, take
the product to
a specialist
workshop