NuTone IM5000 Control Module Repair - Failure Mode #1

This particular NuTone IM5000 Control Module was sent to me from a fellow in England.  He contacted me several times for some "field repair' advise.  Because he couldn't find anyone over there who was interested in working on the IM5000, he decided to send it to me along with 3 NuTone IS515 inside remote stations that he suspected were bad.

Here's a short video showing the condition of the IM5000 when I set it up on the bench.

You can see that the repair was simple but extensive.  Some of the problems with this IM5000 Control Module may have occurred during previous work that had been done.  It turned out that the three IS515 Remote Stations worked correctly.

Here's a video of the initial Powering Up after the repair has been completed: