United Office H13742C - Manual (Page 24)

23
Troubleshooting
If the display is not working, proceed as follows:
1. Check if the battery is empty.
2. Check whether the battery is inserted with the correct
polarity.
The device contains sensitive electronic parts. It is therefore
possible that it is being disrupted by remote devices in the
immediate vicinity Mobile telephones, two-way radios, CB
radio equipment, remote controls and microwaves could all
cause disturbance. If error messages appear on the display,
remove these devices from the vicinity of the device.
Electrostatic discharge could lead to functional errors. If
such functional errors occur, remove the battery briefly and
replace it again.
Cleaning and storage
Only use a dry and fluff-free cloth for cleaning.
Disposal
Disposing of the device
Never dispose of the device in normal household waste.
The device should be disposed of via an authorized
waste disposal company or your local waste disposal
organization. The valid regulations must be complied
with. If in doubt, contact your waste disposal
organization.