Underskirt Blower motor replacement;
Horizontal Output Style.
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Safety Warnings!
Remove Power from the spa/hot tub BEFORE performing this procedure.  Failure to comply with this requirement, can lead to electrical shock and/or electrocution!
Disclaimer
The instructions here are intended for general reference only.  Many blowers are different from the one depicted here, and may require more or less mechanical effort or knowledge in order to achieve the desired results.
READ FIRST BEFORE YOU CONTINUE
Comet® Underskirt Blower Assembly, Removed from it's mount. New blower motor...
This under-spa skirt mounted Comet® blower assembly needs the new motor shown on the right.  It's a 1.5HP, 230 Volt model.  (To purchase this motor, click here .)
Separating the blower halves.. Removing the foam insulation
In order to disassemble this kind of blower, the screws that are holding the assembly together,  must be removed.  There are usually four 5/16" hex screws.  Take care to preserve the foam insulation in the housing.
MOST blowers of this type, will utilize what is called a "strain relief" to allow the power cord to enter the blower, and most of them, do it very well, preventing air loss through the hole.  What I'm trying to do, is to remove the strain relief, and allow the cord to go through the entrance in the housing, so I can pull the motor assembly out, and remove and re-attach the existing connections.

Most strain reliefs can be removed with your fingers, simply unscrew them.  Sometimes, you may need to use a pair of pliers to get it loose.

Removing the electrical cord strain relief
With the strain relief removed, the motor can be pulled out Removing the grounding screw from the blower frame
Now that the strain relief has been removed, the motor will come out easily, exposing the wiring connections.  First thing, is to remove the ground screw connection (green wire) to the motor frame.  SAVE this screw!  You'll need to use it again on the new motor.
blower motor separated from housing... wires removed.  
Now that the ground screw is removed, I've cut the power wires (usually black and white)  to the motor, and separated the assembly.
removing the motor retaining flange Separating the flange from the motor...
Here I'm removing the four screws holding the plastic motor mounting ring,  (right), using a 5/16" nut driver.  There's another flow isolator below this on this specific installation, which also must be removed.
Motor completely removed.  
Motor is now totally removed...  now it's time to install the new motor in the blower assembly.
Removal of the old motor is now complete, click to continue to the next page.