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I THINK THE AC UNIT IN MY ATTIC IS BROKEN. IT SOUNDS LIKE ITS GOING TO BLOW UP WHEN THE UNIT COMES ON. OUT OF THE BLUE LASTNIGHT IT STARTED MAKING A REALLY LOAD NOISE AND THE NOISE HAS ONLY GOTTAN WORSE

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This is more than likely the fan blower motor on the inside of the unit. You could get lucky enough to just have something get sucked into the return and has wrapped itself in the fan blades causing it to become off balanced, but most of the time it is either the motor bearings going out or the bracket that holds the motor in has broke. You can check any of these by shutting the power off to the unit and opening the blower motor compartment (usually just the front cover of the unit) and while the fan blade is no longer moving, and trust me, they can spin forever, feel around the blades to see if anything is in there and while your there, you can check the play in the wheel by grabbing it and try to moved it left to right. If there is play in the wheel, it will need to be taken out and either tightened back onto the shaft or the motor replaced. You can also check the bracket that holds the motor in, this should just be a visual check to see if any of them have broke or cracked. I hope this points you in the right direction and good luck!

Posted on Aug 05, 2010

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Your glow ignition is broken.
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1 Answer

Hello :)


1. Switch off the AC first for a few hours
2. Remove the power connector
3. See that the Compressor is cool first
4. check the air tube and the blowers
5. Reconnect the same and connect the power cables
6. Swith on the AC then

If your problem solved plz rate me

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