Hello, I have a question. I've used my Respironics Bi-Pap for years. Yesterday it started to malfunction. The machine will not turn on. Instead it "beeps" continuously, once per second or so, and the little arrow button near the big "On" button flashes light at the Isame rhythm. Is there something I can try to "reboot" it? I am outside the US so repairs are very difficulet. Thanks for any suggestions