My Tempstar SP80 furnace blower will not come on. The fan timer control board clicks then makes a faint almost whistle noise but the blower never comes on. The blower motor checks okay. How can I test the fan timer control board to see if that is it?

You can jumper from R to G on the control board if no blower you can remove the blower wires from the control board and add power. If it works you have a bad blower control.