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2. If the problem with the unit is not solved, then go through the following list of possible problems:
Problem
Cause
Solution
You hear a negative tone (high – low) when
pressing a bell push button.
1
There is an error in the programming.
Erase the programming and start again.
The installation is still in programming mode.
Exit the programming mode.
The intercom is not connected correctly.
Check the wiring according to the wiring
diagram.
Someone is calling but you do not hear a
ring signal and the red indication LED is
illuminated.
The ring signal is deactivated.
Press to reactivate the ring signal. The red
indication LED will no longer be illuminated.
You can hear a whistle sound during a
conversation.
The settings of the external unit are not
fine-tuned.
Change the sound settings of the microphone
and loudspeaker using the potentiometers
on the external unit until the whistle sound
disappears.
Both indication LEDs are permanently
flashing.
1
The a and P wires are swapped or short
circuited.
You will hear the following error tone:
Swap a and P wires or resolve short circuit.
The device reverts to rest mode.
The a wire is not connected or gets no power.
You will hear the following error tone:
Connect the a wire and check the power
supply.
The device reverts to rest mode.
A key got stuck (pressed longer than 15
seconds).
You will hear the following error tone:
Loosen the key on the device or the floor bell
push button.
The device reverts to rest mode.
1
Contact an authorised installer to resolve the problem.
7. MAINTENANCE
Dirt may prevent the intercom from functioning properly. Therefore, always keep the device clean and dry. Use a damp cloth and water with soap
to clean the device.
To avoid damage to the surface of the device, do not use any abrasive cleaning agents or pads, cleaning agents based on dissolvent, acid or acetic
acid, or a high-pressure cleaner.
If any parts of the intercom are defective, you contact an authorised installer.
8. TECHNICAL DATA
dimensions (without receiver)
180 x 100 x 23 mm (HxWxD)
dimensions (with receiver)
204 x 100 x 50 mm (HxWxD)
weight
340 g
material of the housing
PC+ABS
colour of the housing
white
power supply voltage
+ 24 Vdc ± 8%
maximum input current
I(Pmax) = 70 mA
input current in rest mode
- two-wire: I(a) = 1 mA
- three-wire: I(a) = 0.2 mA – I(P) = 1 mA
protection degree
IP30
ambient temperature
-5 – +40°C
quality mark
CE marked in accordance with EN 60669-2-1
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