Table of Contents
10.1 Trouble messages in the display
Up to three works-programmed trouble messages with 8 characters each can be displayed in the second line of
the display. If a clear text trouble message applying to an event is displayed, this trouble message is shown
automatically in the display or can be activated with the function key >Param/AT<.
Trouble
Possible cause
text
UB
fuse blown. Short circuit
ext
UBext
in UB
supply voltage.
ext
supply voltage Short circuit in
UBint
UB
supply voltage.
int
U
fuse blown.
ULinie
line
Brief loss of mains power.
short
Loss of mains power.
long
Failure of supplementary
ext. PSU
external power supply.
The internal printer has run
paper out
out of paper.
The paper retaining lever has
not been returned to its
not ready
original position after paper
change.
The internal printer has no
not voltage
supply voltage.
A short circuit has been
detected in the corresponding
short cct
primary loop.
A short or open circuit has
been detected in the
short/open
corresponding primary loop.
A communications error has
been detected in the
com. err
corresponding primary loop.
FB 798951.GB0 / 01.09
Fire Alarm Control Panel IQ8Control C/M
1st. measure
Check whether fuse blown or short
circuit.
Check fuse or remove components
until message disappears.
Check fuse and replace if
necessary.
Check mains supply and mains
fuse.
Check mains supply and mains
fuse.
Check external power supply unit.
Replace the printer paper roll.
Set lever to correct position.
Check wiring of UB
and fuse.
ext
Check the indicated primary loop
(see Prloop No.).
Check the indicated primary loop
(see Prloop No.).
Check detector contacts, replace
detector and/or necessary module if
start-up.
2nd. measure
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Check monitor line.
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