COLEMAN LAY-Z SPA PUMP IMPELLER REPLACEMENT

thingiverse

So I inherited a used Coleman lay-z spa recently only when I set it up, filled the tub and went to fire it up I kept getting an E02 warning which doing some research indicated a problem with the water flow. I tried all the troubleshooting techniques but knew it had to be something with the pump. So of course I took it all apart, found the pump underneath and pulled the magnetic impeller out to find the old covering around the magnet had cracked. I then said to myself...self you should be able to repair this plastic casing by designing a new cover for the magnet. So I did, but then I found after I had pressed the new cover over the magnet my assembly was too long or i hadn't pressed the magnet fully in. I measured the face to face distance of the pump insides and found the distance to be roughly 2.25", so I redesigned the impeller to be 1/4" shorter in order to fit. If you're having trouble with this system as well, give this a shot. I printed the parts 100% infill and using NGEN material. Of course make sure if you attempt this to disconnect the power to the pump and you will also need to disconnect from the hot tub as well in order to flip this unit around and get to the pump on the bottom side of the unit.