heating unit making banging/clicking noise

Old 10-20-13, 08:21 PM
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heating unit making banging/clicking noise

hello I am having some trouble with my heating unit. I have never dealt with a heat and air unit so i feel a little over my head. I have a double wide that has what i beleive is an intertherm unit thats what it says on the outer pannel. i do have a manual that says e2eh-xxx and e2eb-xxx. my problem is last winter when i turned my heat on it would make a banging sound every 15 seconds and it would last around 10 min and then it would stop but if i turned the heat up higher it would start over again. i just turned it on for the first time since last winter and the banging has gotten worse. it sounds like some one droped a bolt in the fan or something sounds like a machine gun. i checked to see if something was in the blades but i cant find anything. also it seem like my lights flicker when this is happening.
If anyone has any ideas or advice i would greatly appreciate it. I want to try to fix it my self if i can.

Thank you
Old 10-21-13, 02:46 PM
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Sounds like you need to remove high voltage power to your electric furnace and remove the electric heat strips to inspect for damage.

The blower wheel may also be rubbing against the blower housing.
It has a set screw holding the wheel to the motor shaft.

I can't hear it from here so it is hard to determine which is the case.

You may have more than one breaker feeding the air handler.


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