WHAT WOULD CAUSE A BLOWER MOTOR TO BURN OUT?

  • Tiny
  • Jw1331
  • 1997 ISUZU HOMBRE

When I bought the truck, the air conditioner would not always blow. Eventually, there was a burning smell and smoke coming from the vents. I replaced the blower motor. The old motor had spots where it looked burnt. Within an hour, the same burning smell came back. What would cause these motors to burn out?

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Wednesday, November 9th, 2011 AT 12:06 AM

3 Replies

  • Tiny
  • Jacobandnickolas
  • EXPERT
  • 68,401 POSTS

Did the second motor go bad or are you smelling the blower motor resister going bad?

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Wednesday, November 9th, 2011 AT 12:08 AM
  • Tiny
  • Jw1331
  • MEMBER

You think it could be the resistor making the smell? Would it be intermitten if that was the case?

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Wednesday, November 9th, 2011 AT 12:09 AM
  • Tiny
  • Jacobandnickolas
  • EXPERT
  • 68,401 POSTS

Usually, the fan motor will start to go bad and draw too many amps. That will cause the resister to burn up. There is a chance that it was damaged and now you smell it.

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Wednesday, November 9th, 2011 AT 1:58 AM

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