I actually had to get a new eflow about 2 months ago because mine died. I had it for a few years so I doubt it was still under warranty, but they didn't ask as far as I remember. I also got transferred to an answering machine, but I left a message and they called me back the next day. They tried to troubleshoot my machine (trying it with and without the connector cable, with batteries vs. plugged in), so make sure you have batteries on hand (they were not happy about having to wait while I ran around my appartment pulling AAs out of remote controls). In the end it still didn't work, so they sent me a new unit and asked me to send the old one back to them. I saved the old nebulizer so I finally have two and don't have to wash the same one out between pulmozyme and tobi <img src="i/expressions/face-icon-small-smile.gif" border="0">
Oddly enough, while they were totally willing to send a whole new eflow, they wanted to charge me (not insurance, me personally) like $75 when the connector cable stopped working like 2 months after I got the unit. Foundation is weird.