Identify the location of your home's main air handler unit. This unit houses the blower motor and is the central point of the duct system. You may need to remove an access panel to get to the internal components.
Step 2 · Access Main Air Handler Unit
Identify the location of your home's main air handler unit. This unit houses the blower motor and is the central point of the duct system. You may need to remove an access panel to get to the internal components.