I've called MaXXair and gotten help easily. May have been before acquired by Airxcel, though. Sometimes the acquiring group "streamilines" things and that friendly service is one of the casualties.
Our coach came with two Fantastic fans. One with powered/automatic lid, the other manual. We like manual better and disabled the lift motor and its little gearbox. Easy to do on the Fantastic, but I don't know about the MaXX.
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB