Also what are you noticing.
Furnace draft inducer blower noise.
Once the vent is moved through the pressure switch the system comes on and starts heating.
The first day the noise was intermittent but by day 2 3 it was constant.
You can fuse the furnace model number to shop around for the inducer motor assembly and probably buy it for 200 250 or so.
My fasco furnace draft inducer blower has become noisy rattling rattle clicking sound.
Do you hear the motor whining or some other problem.
A draft inducer or vent blower is the most common problem on a gas furnace or boiler to cause a noticeable noise.
After installing a nest thermostat with no common wire 4 days ago the noisiness starting developing.
A furnace inducer motor noise can be one of the main problems home owners experience with this component which is mostly found in newer high efficiency furnaces.