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Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections.

 
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  #1  
Old 8/13/06, 12:32 AM
Dale Duffy's Avatar
Dale Duffy Dale Duffy is offline
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Default Heat Pump Noise
What would cause a Heat Pump to make a brief whistling noise when it is not running....refrigerant pressure equalizing?
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  #2  
Old 8/13/06, 12:40 AM
Bruce A. King's Avatar
Bruce A. King Bruce A. King is offline
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Default Re: Heat Pump Noise
That is what I always thought. It should only do that shortly after turning off though.
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Old 8/13/06, 12:46 AM
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Dale Duffy Dale Duffy is offline
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Default Re: Heat Pump Noise
Quote:
Originally Posted by bking
That is what I always thought. It should only do that shortly after turning off though.
Kind of weird Bruce, it is one of mine but it doesn't necessarily make the noise when it just shuts off, it might be 10 minutes latter, and not all the time, just once in a while.

It works fine, but I noticed it making the noise again tonight and thought someone might have a guess.

Equalizing is what my guess is.....but I could be wrong.
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