BLOWER MOTOR IS WORKING INTERMITTENTLY

  • Tiny
  • Ronnie G
  • 2002 Chevrolet Avalanche
  • 180,000 miles

My blower motor fan works for a while then will stop. It wont work on any speed for long. I replaced the blower fan module already and I still have the same problem. Do I need to replace fan selector switch. This is a 2002 avalanche when I turn on the a/c or the heat sometimes the fan will work sometimes it will not.

How can I check the fan speed selector to see if it works properly. Or do you have any other suggestions on what the problem is. When the a/c or heat does come on it blows cold or hot but the fan blows only one speed no matter where the fan switch is set.

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Sunday, January 8th, 2012 AT 4:57 PM

2 Replies

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Seems to be a failing fan motor. Give the fan motor housing a little banging with you hands and if the motors starts working, it is due for replacement.

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Sunday, January 8th, 2012 AT 6:56 PM
  • Tiny
  • cadieman
  • Member

When its goes out us a test light to check the power and ground to the motor.

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Sunday, January 8th, 2012 AT 7:00 PM

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