Furnace Motor Installation Photos

Here is a shot of the blower assembly complete with the furnace printed circuit board mounted on the front of the blower. Note the mess of wires! The circuit board will have to be removed and HOPEFULLY there will be enough slack in the wires so that we can tie up the board and it's related wires high enough to slip the blower out of the furnace. If this can't be done we will have to label each wire CAREFULLY so that we can remove all the wires for the blower to be able to come out. We hope that won't be necessary! It would be wise to label the wires any way since wires have a nasty habit of coming off the board and then you will have to read a wiring diagram ( if you have one and are capable of reading it ).

Here we are removing the (2) screws that hold the blower in the furnace. Your installation may be different than this, but there will be some way that the blower is being held up.

Now, the blower has been dropped down in the furnace.

(2) screws are removed and the circuit board is off of our blower.

We did manage to slip the blower out of the furnace and below is a shot of the old motor and it's bracket. This existing motor uses a bracket that is welded to the motor itself. This will mean using a new universal belly band bracket on our new motor as well as a matching capacitor. We are removing the holding bolts from the bracket, when these are out, we will flip the blower over and remove the set screw from the hub and shaft.

Here is a shot of us removing the set screw. If we are lucky, the old motor should now drop out of the blower wheel! If it doesn't, we will have to drive the motor out of the wheel with a brass drift and a hammer with the help of some WD 40.

Here is the blower assembly in it's entirety.

Here is the new motor and capacitor that we will be installing.

We have got the old motor out on the floor, note the welded bracket.

Here we are checking the new bracket to see if it will line up with the original bolt holes. In our case it does, if it didn't we would have to drill new holes once we centered the wheel and motor in the housing. This centering is VERY important as the wheel may rub on the housing or vibrate if it is off center by very much!

Here we have installed our new motor and bracket. Our belly band brackets come with heavy rubber grommets which run much quieter than the original motor brackets. Please be sure to attach the green ground wire to a metal screw on the blower for safety.

Now flip the whole assembly over, be sure the wheel is centered in all directions, be sure the set screw is tightened down on the flat spot on the motor shaft and NOT the round part of the shaft! Once tight, give the wheel a spin and make sure it doesn't hit any where. Worth mentioning is, if the studs that come on the motor are interfering they can be cut off if they aren't needed for mounting the motor.