Contact Information
Web Site Search
Intercom Repair Request Form
NuTone IK15 & IK25 DoorCom Systems
Vintage NuTone Intercom Catalogs
Donations
M&S Systems (Music & Sound Intercom)
Main | NuTone IM5000 Control Module Repair - Failure Mode #1 »
Monday
Oct292012

NuTone Model IM5000 Selective Call Intercom System

The NuTone IM5000 is the stripped-down version of NuTone's IM5006. The IM5000 was really designed to be used as an Intercom only system, however it does have a single audio input on the IM5000 control unit.

The IM5000 uses the same remote speakers and the installation layout is the same as the IM5006.

Since the IM5000 is a newer model than the IM5006, we have had fewer service requests and repairs until recently.

We have been seeing more and more IM5000 systems that are in the 8-9 year old range that are experiencing failures.

These failures present themselves in the following ways:

 

  1. The system becomes non-operational and there is often a “popping” or “clicking” noise that can be heard coming form the remote stations.

  2. There will be many of the LED's on the remote stations that will be dimly lit, all at the same time.

  3. The door chime will not operate.

 

The tricky part of these calls is that if some of the remote stations are disconnected from the IM5000 control unit, the remaining stations may start working again. This makes it seem to be a problem caused by a remote station, however we have found that the source of the problem is usually the IM5000 control unit.

The source of the problem seems to be a breakdown in the power supply of the IM5000 and it becomes unable to power more than 2-3 remote stations. This is a very similar problem to what happens to the IM5006.

The repair is straight forward, there are about 12 capacitors that must be replaced in the IM5000 to correct the problem, although it is prudent to replace the remaining capacitors in the circuit to insure the problem will not re-occur again in the short term.

The failure of these parts is most likely only an age related issue. An 8 year old IM5000 has accumulated 70,000 hours of in use time, which is about the expected life of the failed components.

The bench repair time for the IM5000 is about 2.0 hours, which includes the initial testing, repair and final testing. It is necessary to have at least 5-6 remote stations for proper testing.

 

The pictures show the components that should be replaced.

For other common problems with the IM5000, See the problems with the IM5006

Make a Service Request: 

Ask a Question:

 

 

 

 

Reader Comments

There are no comments for this journal entry. To create a new comment, use the form below.

PostPost a New Comment

Enter your information below to add a new comment.

My response is on my own website »
Author Email (optional):
Author URL (optional):
Post:
 
Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>