Ok.
Welcome
Next step...go to the appropriate section of this forum...that would be problems and annoyances.
Next step...click on the search button...that'll get you quite a ways here without being treated like a second class citizen.
Next step...in the keywords box type "blower motor resistor" and click on search.
Next step...read the directions on how to replace said resistor.
Next step...enjoy having all 4 speeds on your HVAC controls
Welcome to XOC
![[Wave]](graemlins/wave.gif)