Ask Experts Questions for FREE Help !
Ask
    roger2389's Avatar
    roger2389 Posts: 1, Reputation: 1
    New Member
     
    #1

    Dec 3, 2011, 07:57 AM
    Loud noise when central unit is in defrost mode. Goodman unit
    When my furnace is in defrost mode (fan not turning outside) I hear a loud noise that sounds like there is something flapping underneath the house. I have been under the house and checked all the duct work and found nothing loose. 2 different companies have come out to check it and of course it want make the noise when they are here. Odd thing is it does not make the noise everyday just usually early in the morning when I am trying to sleep. Anyone have ANY ideas on what could be causing this noise?

    Thanks in advance

Check out some similar questions!

Goodman furnace is making loud noise when in cool down mode. [ 11 Answers ]

When the furnace fan is running in cool down mode, it sounds as if a flap on the exhaust vent is flapping in the wind

Why does my Central Air Unit (Goodman split unit) neither cool or heat my house? [ 6 Answers ]

It worked fine all summer until last few months. When I have it to cool it blows air but not cold air. Now that I want heat it blows cool air and not hot air. It took it 30 minutes to heat my 1000SF home from 64 degrees to 65 degrees. What could be the problem?

Inside blower on central unit does not come on when placed on auto mode [ 0 Answers ]

I have a Rudd, 2 ton central a/c unit, all electric home no furnace, therefore the blower unit, duct work is in the attic which is a crawl space. I used the a/c last week, worked fine. Today, I turned it on, the outside unit came on, but inside fan did not. I moved switch from auto to on, and it...

Replace a defrost board in old Goodman unit [ 1 Answers ]

How do I replace a defrost board in a 16 year old air conditioner and do I have to buy a defrost board made by Goodman?

Loud Noise from the outside unit [ 2 Answers ]

Hi I have a heat pump heating unit in my 6 year house. Last night I got woken up by a loud squeek/grinding type noise it happen twice in the night. It also most sounded like a belt lose or something needs to be oiled. The nosie came from the unit that is outside. I never heard it do that before....


View more questions Search
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.