I went looking around on the web for instructions on how to disable the extremely loud beeping noise our GQF Manufacturing incubator was making every time the egg turning system was going and found that there are some explanations out there, but not munch in the way of "how-to". We like to keep the incubator in the house because of the ants we have down in the stables. Below are some pointers on how to do this. You seriously only need a flat-blade screwdriver or a socket driver.
Step 1: Remove the Control Center
Remember to make sure the machine is unplugged before you start mucking around here. There should be 6 screws around the edges of the control center that hold it in there. Unscrew all of these and pull the control center out as far as you can (which will be only a few inches)
Step 2: Locate and Unplug the Alarm Plug
Unless you take off the entire top (which you may be more comfortable with doing rather than just pulling out he control center), you won't be able to see the buzzer itself. It's the circle in the top left of the image in this step. When you pull out the control center, you will be able to easily identify it because the wiring to the plug will be tiny. I'm talking like 22 or 24 gauge wire, compared to the other much bigger wiring. The alarm wiring will also likely be red and black instead of black and white. In my setup, the plug was brown. Yours may very. That said the wiring from the plug comes straight out of the control center to the plug and not from anywhere else. Unhook the alarm by pulling the plug apart.
Step 3: Close 'er up and Test
Put the control center back in and close it up by replacing the screws that you took out. Plug it in and try holding down the "M" button on the control panel. Normally doing this would beep the alarm while the egg turning racks are moving. You should just instead hear the gentle buzz of the racks moving.
Though this was simple, some may find it intimidating to open up and modify equipment. Luckily, the parts used for this piece are very similar to things I play with when I'm working on computers, Arduinos, Raspberry Pis and the like, except much bigger and older. Good luck and enjoy the wonderful silence.