Engine light and no acceleration on highway on 2008 Ford Escape

On purchase - fan/blower in AC/Heating system made loud noise when dial turned up. Dealership replaced the fan blade, stated sometimes they get "stuck". Problem occurring again + engine light on and no acceleration past 45mph.

Asked by for the 2008 Ford Escape
Need to get codes for the cel being on. Suspect related to cat conv since i believe it to have exhaust restriction causing the power problem. May have fan motor brush problems causing noise or something is in housing hitting fan or fan was installed with a crack in it, etc.