Troubleshooting ideas for Five-party intercom in elevators

Wireless five-party intercom for elevators. If a certain elevator encounters communication issues, such as the elevator's call to the duty room not being accessible, only communicating, or the volume being low, and similar problems,

Try to go to the elevator machine room and directly call the main unit using the machine room phone.

If the communication is normal, it indicates that there is a problem with the traveling cable from the machine room to the car or the wiring is incorrect. Just check the line.

If the call is in the same situation as the car call, then place the antenna in the machine room, for example, place the antenna vertically in an open position and straighten the antenna feeder.

Don't coil it up. If the communication is normal after adjustment, it is a problem with signal transmission.

If the problem remains the same, try replacing this extension with another normal one.

If the call is normal after replacement, it indicates that the replaced extension is faulty. Just replace it with a normal one.

If the problem remains the same after replacement, then check the power supply of the extension and the wiring between the extension and the control cabinet again.