How to Change the Blower Motor on Your Hot Air Furnace

You have checked it all out and find out that yourposition of the motor wires so that you can
blower motor for you hot air furnace isn't willingposition the new motor the same. Usually there
to turn anymore. Now, how do you get thatare three screws that hold the motor bracket.
motor out of there and get a new one in itsRemove the screws and loosen the set screw in
place? The process really is not as difficult as itthe blower wheel hub. Place the blower assembly
may look. Getting things apart is not all that bad ifover something that will allow the motor to hang
you know where to look and what to do.freely. By lightly tapping the shaft with a rubber
The power goes to the motor, but the motor willhammer or piece of wood you can get the motor
not turn. The blower wheel spins freely, so youto drop out of the hub of the blower wheel. If
know that the motor is bad. Now let's get tothe tapping does not work try to spray the shaft
removing the blower from the furnace so thatwith a lubricant and turn it with a pliers or wrench.
we can get the motor changed.Be careful not to score the shaft as this will make
The covers are off and the power is off to theit hard for the shaft to slide through the hub.
unit. The wires to the motor have beenOnce the old motor is out, you can then remove
disconnected. Now you need to look for thethe motor bracket from the old motor and
screws that hold the blower in the unit. If youreinstall it on the new motor. Remount the motor
have an up flow unit you may have to stand onto the blower and tighten the blower hub set
your head to see them. They are typically in thescrew so that the blower spins freely. Reinstall
top flange of the blower bracket, at the frontthe blower assembly, hookup the motor wires,
edge of the blower. Sometimes you may have toreplace any other things that were removed and
remove a condensate trap or the box that holdsyou should be ready to make heat again!
the furnace module to get to the screws andAlways make sure that you have removed all
definitely to remove the blower assembly.power before starting your work. Wear gloves to
Once you find the screws and remove themprotect your hands from the sharp metal edges
along with whatever else is in front of the blowerof the blower assembly pieces. Changing your
you can then slide the blower assembly outblower motor can be done by most any do it
towards the front of the unit. Most blowers areyourself person, with a bit of patience. It is not a
sliding on a track of some type. They will justjob you can hurry through. If you get frustrated,
slide right to you as you pull them out. Gettingwalk away for a bit. It is amazing what happens
them out is easy getting them to slide back inwhen you cool down and try with a fresh start
correctly is another story.again. Take your time, be careful, and be safe!
Once you have removed the assembly, mark the