So the purpose of a Draft Inducer Motor is to remove the exhaust from your furnace, the old furnaces didn't need this motor because they were natural draft. Without an inducer motor, your furnace could not remove the exhaust.
Today’s furnaces are not like the old furnaces, they work and would barely ever break down. The one tip that can help you identify a possible breakdown with an inducer motor is noise; if you hear noises coming from your inducer motor, change it as soon as you can. This part will not correct itself, it will only get worse, so change it as soon as you can.
There is no point paying an HVAC technician to come in to change the motor, it's really easy to do and most of the time is spent removing bolts and unplugging the part. If you need any assistance, please feel free to contact us.