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AC furnace huming

Home AC furnace hums. Las tweak it wasn't working but still humming. 7 days later I works fine but it still hums. What coil be the problem from it working intermittently ? P.S. last week It did blow a 3 amp fuse but even after I replaced it it took a week for I to work again.

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Blower motor & or capacitor bad

Posted on Jul 11, 2013

  • angel Jul 12, 2013

    Thx. Replaced capacitor. ... Tah dah. It works now.

    Awesome!

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Posted on Jan 02, 2017

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SOURCE: Goodman Furnace/AC unit not working

3 amp is standard.the fuse is blowing to protect the transformer.It is telling you that there is a short in the low voltage wiring.Goodman also had an issue with the coil shorting on the contactor.To prevent damage.....i'd call a pro.It should be a fairly simple repair.

Posted on Jul 04, 2008

kingbrizzle
  • 407 Answers

SOURCE: 3 amp fuse blows when ac is switched on. Heater works fine.

There is a short in the low voltage wires somewhere for sure. The most common place is the low voltage on the outside unit, sometimes animals chew through them or they get cut with a weed eater. Just my experience. You basically have to trace it back all the way to the thermostat and heater. The only other thing is the contactor

Posted on Jul 01, 2012

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