SOURCE 1 S1-FHM3587 Furnace Blower Motor 1/2HP 115V 1075RPM CW/CCW E224965. Used in Excellent Working Condition. SOURCE 1 Furnace Blower Motor 1/2HP 115V 1075RPM S1-FHM3587. EChecks must clear before item(s) are released. Tracking information will be available upon request. We do our best to ensure the accuracy of every listings. Unfortunately, do to our high volume, mistakes sometimes occur. Auctiva offers Free Image Hosting and Editing. Auctiva gets you noticed! Track Page Views With.