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View Full Version : Variable speed blower on AE6015 air handler


gandjheating
Jan 11, 2010, 06:58 PM
Going to low fan to high fan back to low fan back to high fan within 3-4 minutes known as heaving.

hvac1000
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
Jan 15, 2010, 03:31 PM
It has been working for years and it just started last week or so.

hvac1000
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.