Panasonic KX-TG3021NZ Operating Instructions Manual page 43

Programmable settings
Problem
I cannot program items.
I cannot set the alarm.
While programming, the
handset starts to ring.
Battery recharge
Problem
I fully charged the battery,
but 7 continues to
flash, or 8 is displayed.
The handset display is
blank.
While charging, the
charge indicator does not
light and "Charge for
7h" is displayed.
Cause/solution
L Programming is not possible while either the
base unit or another handset is being used. Try
again later.
L In order to set the alarm, you must first set the
date and time (page 15).
L The handset has lost communication with the
base unit. Move closer to the base unit, and try
again.
L A call is being received. Answer the call and start
again after hanging up.
Cause/solution
L Clean the charge contacts and charge again
(page 12).
L The battery may need to be replaced with a new
one (page 11).
L Confirm that the battery is properly installed.
L Fully charge the battery (page 11).
L The battery is empty. The charge indicator does
not light in order to concentrate on charging.
After about 5 minutes, the charge indicator lights
and "Charging" is displayed.
Useful Information
43