regardless of the brand of central vac unit,
the low end Lamb motors have a plastic horn, or exhaust housing, as I call it.
These are cheap motors with cheaper bearings, thus a shorter life span.
Can-a-Vac explains this on their youtube videos.
Either replace the motor with an upgraded metal horn Lamb motor, or replace the power unit with one which has the 5 or 10 year motor warranty.
I got my CV back in '96. It's a two stage Hoover unit, 11 amps, and is still running fine. When I replace it, I'll likely get a Beam, or Can-a-Vac. Not the low end, not the high end, a mid range model which needs no bags. My Hoover has no bag, and I like just having to clean the polyester filter and canister. It's located in my garage, so it's not an issue with dust indoors when I clean it.
