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Carrier 58mvp furnace ecm motor is making viberating noises

Hi: I have a 4 year old carrier weather-maker infinity model 58mvp 060-14 furnace and in the past 2 weeks the ecm motor is sounding noisy and is veberating slightly when it is running. This is a new noise this heating season and since I have about 6 months of the five year total coverage warranty left on it, I'm wondering if this is a common problem and should I call for service? I know It is not the main blower motor itself that is making the noise because I have taken the front cover off the furnace and can feel the ecm motor viberating and the noise I hear is not there when the ecm is not running.
Thanks in advance for your advice.
Ron

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  • Anonymous Mar 30, 2009

    I have the same model furnace and it has worked perfectly for the past 17 years when it was installed. Recently the igniter had to be replaced and then I noticed a rattling or vibrating noise when the motor is running at higher rpm's (when the heat is coming up in the morning).

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Ecms are pretty reliable and electronic failure is much more common than bearing or bushing wearout. i suspect the fins on the blower may be coming loose from their pressed on spline and that will start a vibration or shimmy or you could have thrown a weight that balanced the wheel . best to use to warranty to get a new wheel. good luck

Posted on Dec 07, 2008

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