Humming noise


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Old 08-06-09, 06:45 AM
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Humming noise

After the unit cycles and kicks off I noticed a humming noise in the outside unit when it is not running. What would be drawing power when the unit is not running? Is this normal?
 
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Old 08-07-09, 07:11 PM
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Yes it's normal.

It's the reversing valve coil keeping the unit in cooling.

If it really bugs you you could turn off all power, open the unit and tighten the nut or screw that holds the coil on the valve.
 
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Old 08-08-09, 02:39 PM
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Thanks for the reply Jarredsdad, No its not bugging me. Just wasnt sure if it was normal or something that needed to be looked at.

Thanks again!
 
 

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