LZW36 Is the Fan Power really Off?

I can successfully control my fan Light and Motor with a LZW36 and a Hampton Bay but the motor makes a fast clicking sound when the fan is turned Off at the switch. I can control well the fan speed and works great at low medium and hight speeds but as soon as I turn it off, it starts a clicking noise very fast. Is the fast Off command really cutting down all the power to the fan? Or still receiving any low voltage?