Can anyone tell me how to service the combustion fan on a Coleman direct vent forced air furnace, model number 7995A876?
It makes a huge racket on startup which continues as long as the burner is running.
The entire fan shroud and motor are replaced. The permanently ( for a few years ) lubricated motor bearing wears. The factory matches the motor, fan and shroud for proper air flow, so it is replaced as a unit. Order the part from a local dealer that handles the Evcon replacement line.