Thanks to earlier posts on this forum, I was able to diagnose and then disassemble the BiPap Pro 2 in my hotel room. After clearing all the lines and drying out the flow sensor on the main circuit board, I managed to get the unit to power up and not go into error mode.
However, with my mask on, each inhalation is met with a "punch" or blast of air pressure that jolts the mask and makes it impossible to fall asleep. This surging is not normal: my inhalation pressure is 11.5, and my exhale is set to 7.5, with a Flex set to 3. Even with Flex set to zero, it still blasts me each time I inhale! The BiPap is essentially unusable.
I even unsoldered the Lithium battery from the main PC board, and waited 24 hours to allow the CMOS to clear (it still held my pressures in memory!), but I still have the surging problem. I'd like to buy (I guess) a new circuit board for the BiPap, but the only website I could find sells them for $489!
Could it be the Flow sensor, and is this single part ever sold to consumers? I'd hate to junk the unit and have to buy a new auto BiPap. Anyone else have this surging phenomenon? Thanks, Peter