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5-4 Troubleshooting
Possible SolutionsSymptom Possible Causes
Battery pack is not inserted
properly in the handset.
Reinsert the battery pack in the
handset.
Insert a battery pack in the
handset.
After pressing
O, one or more
of the following
applies:
■ Dial tone is not
heard.
■ Display does not
show anything.
■ Radio module's
RADIO LED does
not light.
Handset ProblemsHandset Problems
Handset ProblemsHandset Problems
Handset Problems
There is no battery pack in
the handset.
Battery pack is not charged
sufficiently.
Place the handset with its battery
into the handset cradle until fully
charged, or remove the handset
battery pack, and place it in the
battery charger’s Spare battery
compartment until fully charged.
If you have a charged battery
pack, use it while the other
battery pack recharges.
Handset is out of range of its
matching radio module.
Move the handset closer to the
radio module.
Power down the radio module or
carrier(s). Plug the telephone
line cord into the radio module,
then repower the radio module
or carrier(s).
Telephone line cord is not
plugged into the radio
module.
Serial numbers for the hand-
set and the radio module do
not match.
The handset and radio module
must be a matched pair.
The communications system
switch is not operating
properly.
Check the wiring for the switch,
and verify that the switch has
power.
Remove the electrical device
that is causing interference, or
move the handset or the radio
module to another location.
Another electrical device or
metal walls are causing
interference.
There was a recent occur-
rence of lightning or a
power failure.
■
Remove the battery pack from
the handset for 10 seconds,
then replace it.
■
Check to see whether the radio
module or carrier is receiving
power.