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    topsy's Avatar
    topsy Posts: 2, Reputation: 1
    New Member
     
    #1

    Dec 9, 2007, 03:57 PM
    Goodman furnace blower buzzes, doesn't blow and then turns off
    Hi, I'm new to this forum and wonder if someone could help me out. I recently came home and noticed a bad smell in the house. I wondered if it was gas, but my wife described it as a burning rubber smell. This is what is happening. The furnace turns on. The flames are burning real good and everything seems OK. The blower turns on. However, it makes this annoying buzz and just keeps buzzing. After a little while (maybe 30-60 sec) the furnace shuts down (i.e. the fames go out). I conclude that the furnace shuts down because it detects that the blower isn't blowing. This cycle just continues over and over. I checked for loose wires and tightened the connections on the thermostat. I recently had a heating guy come out to check the level of carbon monoxide. He said that it was excellent. 1-2 parts per million I think. Also, I replaced my old honeywell thermostat about a month ago. The furnace worked fine until now. Maybe I hooked something up wrong and it took until now to "burn" some wiring. I wondered if I connected the wires up correctly.

    Here are the specs:

    Goodman gas furnace (1993)
    GMPN080-4 Rev B

    Hunter thermostat 44155C

    Any thoughts would be helpful... our home warranty just expired 4 days ago. Funny how that happens. Thanks.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Dec 9, 2007, 05:44 PM
    The blower motor is probably shot.
    The smell is called askrill because the windings are burning up in the motor.
    Make sure to get a new capacitor when you get the new motor.
    topsy's Avatar
    topsy Posts: 2, Reputation: 1
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    #3

    Dec 9, 2007, 09:10 PM
    Thanks. That's what I'm thinking... the red light by the blower blinks 4 times... indicating a problem with the limit switch or something. I'm going to have someone check it out tomorrow. I was hoping I could fix it myself. Do you think I should even try?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #4

    Dec 9, 2007, 10:15 PM
    Quote Originally Posted by topsy
    Thanks. That's what I'm thinking...the red light by the blower blinks 4 times... indicating a problem with the limit switch or something. I'm going to have someone check it out tomorrow. I was hoping I could fix it myself. Do you think I should even try?

    4 blinks is a open limit switch. Probably from the blower not working. A limit switch is a safety control.

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