The machine actually works fine - she has used it for several nights, and it works as usual, except for the noise. It's almost as if it's a squeaky wheel/motor or something, but I cannot imagine 12 hrs of distilled water contact would make any rust. Salt water, sure, but not distilled.

Dave

Hi - A visiting family member has a Respironics REMStar Pro M series CPAP machine, and they forgot to empty the water reservoir before packing the machine and traveling. It then went in a suitcase and was in numerous positions, and now the machine makes a loud high pitched whine when it turns on. It...