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Koby Barnaba 07-17-2010 12:28 PM

loud thumping noise inside airhandler
 
What is a periodic loud thumping noise coming from the air handler during the air coindioning phase?

yuri 07-17-2010 01:02 PM

AWOL cat in the blower wheel. LOL. :laughing: You need to check inside the fan compartment and look into the fan to see if a piece of insulation or debris got in there and makes it off balance. The blower wheel could also be loose or damaged.:thumbsup:

DangerMouse 07-17-2010 02:02 PM

Quote:

Originally Posted by yuri (Post 470859)
AWOL cat in the blower wheel.

Or the last guy that worked on it still trying to find his way out?

DM

beenthere 07-17-2010 02:30 PM

Or too much clothing in the dryer sitting next to the air handler. :laughing:

Could be the blower wheel is loose on the motor shaft. or the wheel could be out of balance.

nap 07-17-2010 03:01 PM

Quote:

Originally Posted by Koby Barnaba (Post 470840)
What is a periodic loud thumping noise coming from the air handler during the air coindioning phase?

while not quite a thump but sheetmetal "pops" or bangs sometimes. Large panels do an oilcan action when pressurized and then when the pressure stops sometimes.

hvaclover 07-17-2010 03:08 PM

Quote:

Originally Posted by DangerMouse (Post 470880)
Or the last guy that worked on it still trying to find his way out?

DM

:laughing:

Bwahahahahahahahahahahahah..~PLOP~...oops...laughe d so hard my head fell off!

Good one DM.
:laughing:

nap 07-17-2010 03:14 PM

Quote:

Originally Posted by DangerMouse (Post 470880)
Or the last guy that worked on it still trying to find his way out?

DM



It's Jack Bauer.


EVERYBODY GET DOWN!!!!!!!

hvaclover 07-17-2010 03:16 PM

Quote:

Originally Posted by yuri (Post 470859)
AWOL cat in the blower wheel. LOL. :laughing: You need to check inside the fan compartment and look into the fan to see if a piece of insulation or debris got in there and makes it off balance. The blower wheel could also be loose or damaged.:thumbsup:

Yuri is most definitely correct.

If I may expand on what he has already stated: All it takes is for a small piece of paper to be stuck either in side the blower wheel or the outer surface of the wheel.

It could cause an intermittent knocking of the blower. Or it could become stuck in the wheel and make a continous noise.:thumbsup:

DangerMouse 07-17-2010 03:16 PM

Quote:

Originally Posted by hvaclover (Post 470913)
:laughing:

Bwahahahahahahahahahahahah..~PLOP~...oops...laughe d so hard my head fell off!

Good one DM.
:laughing:

I KNEW that was you! How did you finally get out?

DM

DangerMouse 07-17-2010 03:19 PM

I gotta go with nap on this one, a periodic thump says sheetmetal expanding/contracting to me. Debris or offset blower would be more or less continuous, right?

DM

hvaclover 07-17-2010 03:21 PM

Quote:

Originally Posted by DangerMouse (Post 470918)
I KNEW that was you! How did you finally get out?

DM

i went on a starvation diet and snaked my way out a cold air register:whistling2:

Smarty pants lol

hvaclover 07-17-2010 03:32 PM

Quote:

Originally Posted by DangerMouse (Post 470922)
I gotta go with nap on this one, a periodic thump says sheetmetal expanding/contracting to me. Debris or offset blower would be more or less continuous, right?

DM

I would agree with the possibility but the OP described a "THUMP" not a "BANG" which is how I am used to hearing sheet metal expansion and contraction.

Last year I almost needlessly changed an inducer cause of an intermittent thumping.

But I wasn't 100% positive so I killed the power and pulled the inducer and put the stat to "fan on". The thump kept coming and going.

It turned out to be a cellophane cigerette package stuck to the outer surface of the blower wheel.

DangerMouse 07-17-2010 04:02 PM

So, of course, you apologized for forgetting to clean up the last time and did not charge him, right? hehehehe

DM

nap 07-17-2010 04:04 PM

Quote:

Originally Posted by DangerMouse (Post 470946)
So, of course, you apologized for forgetting to clean up the last time and did not charge him, right? hehehehe

DM

Hell, he charged him extra. He did clean out the ducts after all.

DangerMouse 07-17-2010 04:10 PM

ROFLMAO!

too funny....

DM


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