Sono tornato a casa e questo è quello che vedo sul citofono. Quando premo qualsiasi pulsante emette un forte segnale acustico e le luci non si spengono. Ho bisogno di aiuto per provare a risolverlo. Non sono sicuro di cosa ho a che fare esattamente.
https://i.redd.it/gsd6p6r2xu1g1.jpeg
di Curiuos_mind
8 commenti
Look for the manual online
I let you know if I find the manual at home.
Took your photo and uploaded it to chatgpt.
Its answer:
Your intercom shows one green and one red LED, which on KOCH indoor units almost always indicates a system fault on the building’s intercom bus — not a problem inside your apartment.
Meaning of the lights:
• Green LED: Your unit has power.
• Red LED: The system is in an error state. Typical causes:
• The main 2-wire bus in the building is disrupted.
• A wire is loose or disconnected somewhere (often in the building’s distribution box).
• Short circuit on the bus line.
• The building’s central power supply module (KOCH NG or similar) is malfunctioning.
• Someone worked on the building’s wiring recently.
What you can check yourself:
• If the door buzzer doesn’t work, and you don’t hear anything when someone rings → the bus is down.
• If the blue door-open button does nothing → same problem.
What you cannot fix yourself:
This is not a configuration issue inside your flat. The problem is almost certainly in the building’s central intercom system, not your unit.
What to do:
→ Contact building management or the electrician responsible for the house system.
They need to check the bus wiring and the central power supply.
If you want, I can help you identify the exact model and the official LED error codes.
“Ruftonauswahl: beide LED’s leuchten”
[https://www.kochag.ch/media/Medien/Produkteinformation/PI_TC50_0112_A4_d.pdf](https://www.kochag.ch/media/Medien/Produkteinformation/PI_TC50_0112_A4_d.pdf)
[https://www.kochag.ch/media/Medien/Bedienungsanleitung/BA_TC50_A4_d.pdf](https://www.kochag.ch/media/Medien/Bedienungsanleitung/BA_TC50_A4_d.pdf)
I don’t care, just get out of my house!
Another possibility:
Red means the intercom is muted (bell icon button). It still indicates with green LED that someone pressed the door bell, it could be stuck or in a state where its constantly ringing your apartment.
Check the buttons beside your apartment door and the one at the buildings entrance if any of them is physically stuck. If not, unfortunately there isnt much you can do besides keeping it muted and contact the landlord/Verwaltung.
I have the same system – is it still like this?
Because I have sometimes the bell off (red light on the left ON) but if someone rings its indicated by the right light turning green.
My mother never understood the intercom in their apartment so she would just push all the buttons until, by trial and error, she got the desired result 😂