ResMed S8 Vantage shuts off intermittantly

[Tracywag]

There is still power going to it, the LED displays no error. It will just turn off. It is from 2006, but not part of the recall. I am working with insurance now about a repair or replacement, but am nervous to not have a functioning machine. This is my lifeline. Has anyone experienced this before?

If I do get a replacement, should I ask for the same (or current similar model)? Or has something fantastic come on the market in the past 4 years? The features I like best are Autoset, data reading ability and humidifier. Wish list would be quieter, battery backup and HEPA filter. I have had great results with this machine (100% compliance) so don't want to go in a different direction.

Also, any new wonders in masks for mouth breathers? I have a Mirage full mask, and it's ok.