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    gandjheating's Avatar
    gandjheating Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jan 11, 2010, 06:58 PM
    Variable speed blower on AE6015 air handler
    Going to low fan to high fan back to low fan back to high fan within 3-4 minutes known as heaving.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 11, 2010, 08:20 PM
    Yes your system has not been adjusted properly by the installer OR someone messed with the settings. Call the installer back and have the settings adjusted properly or that expensive motor/controller will be toast.
    gandjheating's Avatar
    gandjheating Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Jan 15, 2010, 03:31 PM
    It has been working for years and it just started last week or so.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Jan 15, 2010, 04:14 PM
    Then make sure all registers are open and that air filter is clean with no other blockages of the return air grills.
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