Yeah, if the motor is electronically controlled, you DO NOT want to just put the pot between the motor and the line. The pot is rated for very low power and will turn into smoke if you try that. The problem is with something on the electronic control board. If you can send a pic of that I might be able to tell you what to replace.
Are these Chinese made or from a major manufacturer? (I'm looking here for two things: quality of design and possibility of IDing the parts)
There's also the junkyard challenge alternative of replacing the whole motor control circuit with an off-the-shelf lamp dimmer...
Last edited by Peter Simpson; 07-16-2013 at 12:46 PM. Click to view previous post history.