Problems with the electric lift

How good afternoon, I have a problem, to see if Aalguno can help me!
I have a Fiat Palio 1.4 Model 2009, and last week the electric lifts stopped working, the fuses are all good, what can it be? (As data, I tell you that there were 6 days of rain in a row,) were barbarous, and after ten minutes that had stopped the car, they walked more

If the fuses work well, the failure derives from the buttons, since that of the driver governs the two windows, or if not the Levalunas engines have broken,