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Appendix, Troubleshooting – Siemens Hicom cordless EM User Manual

Page 60

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60

Appendix

Before contacting the Service department, you should
attempt to rectify any errors yourself:

Troubleshooting

Caution:

The battery compartment must not be opened under
any circumstances in an Ex zone.

Error

Possible cause

Remedy

No display.

Mobile unit not
switched on.

Battery empty.

Press the On/Off
key.

Recharge the battery
or replace it with a
spare battery.

*))!N>!'!-!

is displayed as soon
as you press the talk
key.

No dial tone; no calls
can be made.

cordless EM is fully
utilised by other
users.

Try again later.

No radio connection
possible to base sta-
tion,

-!

flashes.

The mobile unit is
outside the radio
range of the base
stations; radio signal
too weak.

The mobile unit is not
registered.

Excessive delay
between synchroni-
sation attempts.

Move into radio
range, change loca-
tion.

Register mobile unit.

Switch off mobile unit
and switch it back on
again.

-!

is displayed,

for example, but no
incoming or outgoing
calls are possible.
Activation/deactiva-
tion not possible.

The mobile unit is
blocked.

Remove the battery
compartment lid,
remove and then
reinsert the batteries,
close the battery
compartment lid.