Don''t pay someone to do this for you if you''re at all capable to work with your hands and can work from a step ladder comfortably. The job isn''t that hard. I used this to replace the motor and fan wheel on my model 688J that was installed in 1999. The parts list...
Don''t pay someone to do this for you if you''re at all capable to work with your hands and can work from a step ladder comfortably. The job isn''t that hard.
I used this to replace the motor and fan wheel on my model 688J that was installed in 1999. The parts list calls for 97012026, but I purchased this one because the motor and the wheel appeared to be exactly the same and much cheaper (although off-brand).
Hint - before prying the old one down from the ceiling, you might want to mark where the old one sits against the drywall inside the hole. That way it might be easier to tell how far to push it back in when you reinstall. Also, you might want to take a picture.
The metal housing needs to be pulled out of the fan assembly (after unplugging it). To do this, mine wasn''t screwed in as I expected it to be, but it was held in by cutouts on the side. I used a stout straight bladed screwdriver to pry it out and it fell to the ground. I didn''t expect it to come out so easily, so be careful.
You also might want to take a picture of the assembly so you don''t forget how it goes back together. Before removing the motor, you need to remove the old fan wheel. It comes off by gently pulling it off the shaft, while rocking it back and forth. Removing the old motor was easy, just back off the two nuts on the wheel side of the assembly. (don''t lose them, because this unit doesn''t include those two nuts).
Making sure the motor is positioned correctly with respect to the cutout hole for the AC plug, attach the new motor through the holes and screw on the two nuts, snugly - but don''t over-tighten. (with aftermarket parts you never know how stout the threads will be, so be careful not to strip them by over-tightening.) Then press on the new fan wheel, being careful not to push awkwardly (make sure everything is square). Using a small rubber mallet tap on the new wheel until it won''t go any further. Manually spin the wheel to make sure it''s all square so it doesn''t wobble. If it does wobble, adjust it with your fingers (mark the high spot with a pen or something so you can see where to adjust) to make sure it spins correctly. (The shaft on this aftermarket motor is 1 or 2 millimeters longer than the original. On my old assembly the shaft on mine protruded from the back of the wheel about a millimeter. On the the new one, it didn''t make it to the edge, so allow for that when you''re trying to determine how far to tap the wheel onto the shaft).
Before reinstalling, check the metal frame for any bent cutout tongs you may have damaged by prying. Just bend them back where they should be. If you don''t do this, it might not fit up into the hole correctly.
When I installed back into the ceiling, I had to back it off slightly from where it was originally because of the longer shaft on the motor. But it worked out fine. So before you plug it in and install the grill, check the wheel with your fingers and make sure it''s spinning freely.
All in all, it works, it''s much quieter than my old one, and everything''s fine.
Don''t pay someone to do this for you if you''re at all capable to work with your hands and can work from a step ladder comfortably.