It is randomly letting out a sharp, high pitched squeal! It lasts for about 10 minutes at a time, sometimes longer. Once in a while, the music comes in garbled from time to time and then the squeal happens. Then it sounds like someone is eating potato chips while holding a megaphone to their mouth. Pages don't always come through. When they do, it is barely audible.
It's annoying and everyone is getting headaches! I just came home with one!
The QMT came to the store to fix it a couple of days after it started happening but didn't fix it. So, we're stuck with it. I don't know why he didn't just cut the power to the damned system? The customers are complaining about it too! We even got a feedback survey about it if that's what it takes to get it fixed.
When we signed up for this job, I thought that we only agreed on non-functioning AC? /sarcasm