Stuttering Air Flow

[Danny_Kinkade]

Has anyone ever heard this sound coming from their furnace.
Sounds like air is struggling to pass with filter in place – once I remove the filter it improves dramatically but not 100%

•   Stelpro furnace Electric Forced Air installed 2 years ago ( worked flawless 1st two winters )
•   With filter in place from using a cheap filter or using a high end filter the issue presents itself
•   With filter removed it improves but not 100%
•   No visible blockage in return vents
•   No closed vents in out vents ( closed the vent in video only to make better quality video )

HVAC guy came out
•   Replaced Blower motor – no improvement
•   With motor set to medium a slight squeal can be heard, not heard on high speed
•   A small vibration on blower wheel may or may not be there. Could be our eyes playing tricks on us

Anyone else experience this
Helpful advice would be appreciated

[Admin]

Is there an air conditioning coil at the furnace that may be dirty?

[Danny_Kinkade]

No AC
It's a straight forward Electric Forced Air Heating Furnace.
Only 2 years old, everything looks clean