View Full Version : Need Festool Vac Help!
Derek Arita
09-03-2021, 4:55 PM
My CT33 has been actually really strangely. Randomly, I hear the vac powering up and down and up and down, like a sine wave. Anyone experience this before or know what's going on?
Dave Sabo
09-03-2021, 5:32 PM
brushes worn out , or close ? 33's are pretty old now.
I'd also check the switch module as they tend to gunk up with dust.
Richard Coers
09-03-2021, 6:56 PM
Isn't there a potentiometer on there to make it variable speed? That probably has dust in it, or the internal wiper has just gone bad.
Ben Schmidt
09-06-2021, 9:43 AM
Have you checked the bag? I think they do that sometimes when the bag is nearly full. Or the filter could need to be cleaned. Check both of those first!
Derek Arita
09-06-2021, 9:57 AM
Have you checked the bag? I think they do that sometimes when the bag is nearly full. Or the filter could need to be cleaned. Check both of those first!
thanks Ben. Will do.
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