Both blowers on my lopi large insert quit on me. I did change the Rheostat a few months ago so I doubt it's that. I also bypassed the power from the Rheostat and still no luck. I doubt that both blowers would go out at the same time. The unit is now only 2 1/2 year old. That should happen I don't think. They both spin freely and not stopped by dust and ash. I don't know what to do now. Thanks in advance for any help.