yeah, there was one member here in the BS section, looking fro Gmachinz b/c his unit burnt out.. that was the only problem I heard of so far. But I contacted him to buy one, and he said he wasnt carrying them anymore b/c of problems.. They are carrying Spal Controllers.. Operate the same way pretty much, as far as ramping up the speed.. So I bought one from him b/c I want a controller, and not use a relay wiring mess to wire up my taurus fan.. Hopefully it'll work.. After buying it, I realized if I had bought a DC direct, I would have saved some $$.. But, if it works and dont give me headaches, I dont care... lol Will post when I get it, hopefully this week.. Good luck with your DC Unit.. Could of just been that one was the bad apple.. who knows..