Introduction

The A.O. Smith Model 91 AC Motor has the following specifications:

• Diameter - 3⅜"
• Description - MODEL-SFHP-3.3
• Horsepower - 1/15
• Current - 2A/1A
• Frequency - 60Hz
• RPM - 3000
• Voltage - 115/230 VAC
• Number of speeds - 1
• Motor type - shaded pole
• Frame size - 3.3
• Phase - 1
• Enclosure - TEFC
• Bearings - Ball
• Rotation - Clockwise
• Shaft - stainless steel
• Comes with built in cooling fan, and we must say, an exceptionally long shaft length of 5"

Replacement of a Burnt Out Model 91

This is the burnt out motor:

And this is what the burnt coil (on the left) looks like:

The enamel on the coil has completely turned into soot.

Last updated on 27 Jun 2012