Why does my proform xp 400r keep beeping even when it is not being used?

Did you ever find a resolution for this issue? I know it was posted over a year ago, but now mine is doing the same thing, randomly beeps 3-4 times rapidly whether or not is in use and never shuts off. Also none of the buttons work, just makes it beep as well. However, it still responds when pedaling and adjusts the resistance, just can't select a workout mode. Can only power off by unplugging otherwise the display stays on and keeps beeping every ten seconds or so