Door Intercom

JOHNPT

Hi
Does anybody have any idea about how to test an intercom. Its in a block of apts which are 10 yrs old. All the intercoms in Apts work apart from one Apt.
1 What is the most common fault?
2 Should i test the voltage at the intercom in the Apt and what should it be?
3 Or would the voltage only be present when somebody rings the apt.
4 If there is voltage and it not working does the intercom in Apt have to be changed for an exact replica or will any make or model do

Thanks in advance - (sorry for such a long question)

KoolKid

JOHNPT wrote: »

Hi
Does anybody have any idea about how to test an intercom. Its in a block of apts which are 10 yrs old. All the intercoms in Apts work apart from one Apt.
1 What is the most common fault?
2 Should i test the voltage at the intercom in the Apt and what should it be?
3 Or would the voltage only be present when somebody rings the apt.
4 If there is voltage and it not working does the intercom in Apt have to be changed for an exact replica or will any make or model do

Thanks in advance - (sorry for such a long question)

The first thing I would do is switch the phone thats not working with one that is.
If not that eliminates the phone . Next would be to string a lenght of cable from the phone back to the panel. That will eliminate a cable problem
Is it an anolouge or digital system.?
If its analouge when you pick up the phone do you have speech in any direction.
Whats the make of the system?

JOHNPT

Thanks Koolkid. I got it sorted turned out it was loose connection on phone