IFC on Trane furnace

Question

Trane literature says when the thermostat is set to 'on', the furnace fan will operate for the cost of a 60 watt bulb. I know four Trane owners (units less than 2 years old) and only one of the four operates at that level....the rest are operating at approximately 350 watts and it is cost prohibitave to run. I want to get full benefit of my electronic filter. Local service techs say they don't have a solution...Trane headquarter techs say it is in the IFC. They did not say if it can be tweaked.