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KGL-100 Combustion Blower Problems
Howdy everyone, wanted to share a story and ask a question.
I have 3 KGL-100’s in the kitchen I service and one of them was apparently not working and making “odd” sounds, so I took a look at it and it sounded like the combustion blower was turning on but having problems, so I pulled it and the wheel split apart and was grinding, so yeah, it was making odd noises.
It also ground through part of the case but we were able to fix that with some JB weld, looks good as new.
Then came the point of trying to get a new wheel, of course, I have to buy the entire fan assembly for almost $1K so I had the idea of trying to 3D print it, and lo and behold, it was the right size to fit on my printer so I drew it and then printed it.
Then I realized at some point that the fins were pointing the wrong way so I tried it anyways to see if it would work, it would light, but it was unstable and would die out pretty fast, so I flipped the fins back around and reprinted it.
I then measured the air speed leaving the blower just for curiosity, the fan wheel with the wrong fins was pushing air out at 18 MPH, the one with the correct orientation was pushing it out at 32.6 MPH.
Wow! what a difference that made.
I’m now going to install it and re-test but I thought it was cool so I wanted to share it with you guys.
Now the question I had was, what do you think happened to the wheel for it to split like that?
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