ACO FAM-P, User Instruction, Page: 41 / 41

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XVIII. TROUBLESHOOTING
Keypad not working
Check power supply. Turn the power off for approx. 15s and turn it
on again, if this doesn’t work - notify the maintenance staff.
After dialling the
number, the panel calls
two or more apartments
The probable cause is malfunctioning of one or more
uniphones.
Check whether or not uniphones have the same physical
addresses assigned.
Distortion of during
conversation or buzzing
in the receiver.
When connected, see whether or not the supply voltage is lower than
12V (between GND and ELOCK+ terminal). Each panel in the
system must feature a separate power supply.
Door opening
signalled by the unit
but E-
lock won’t
work
Check E-lock or E-lock connection to the panel. Check whether or
not the supply voltage (between the GND and ELOCK+ terminals)
during door opening drops below 10V.
Squeaking sound
during connection
with the receiver
Adjust microphone and speaker volume and balance (Chapter VII).
After call and picking up
the uniphone, the panel
won’t initiate the
connection (continues
ringing)
Check the resistance of the uniphone line. The resistance between
Otherwise, solder the connections, check or replace the wiring,
leave larger wire cross sections.
IU0206enVG.2115