Model #75874120 KENMORE Humidifier

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Question and Answers

Q:

RE: Console HUMIDIFIER, 758.74120 Belt starts to rotate, then stops. Clicking sound is heard.

A:

I know how important it is to have a good working humidifier in the home and I am sorry for the inconvenience of it not working properly. I am adding a link below to help you with your question while you wait for your expert response.

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Joseph P. -
February 20, 2012
A:

Thank you for your question. From what I can tell, either the pad is sticking on the seam or part of the housing. It is also possible that the bushing has become worn and would need to be replaced. This will cause it to make one full rotation and then stop, I would also examine the gears to make sure they are not completely worn out.

I tried to locate some pictures of this unit broken down that were clear, but they are very hard, if not impossible to come by.

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Andrew D -
Sears Technician
February 21, 2012
A:

Hi Andrew, My mom's new belt was delivered and I installed it. It still stopped and clicked, so I had to look into the mechanism on the downwind side of the fan motor. After removing 2 screws, part of the housing for the mechanism came off, and with a little bit of bending and turning, I pulled out a small assembly. The assembly consists of a 1/4" diameter steel shaft about 2 1/8" long with a 1.25" diameter plastic gear and 2 bead-like brass bushings(?), one on either side of the gear. The plastic gear is light blue and just over 1/8" wide (4mm). Five consecutive teeth are worn considerably more than the rest of them. I'm sure this is the problem. The teeth just aren't properly engaging the screw drive from the motor. It has the number 17992 molded into it. The exploded diagram in the manual (The manual itself is part #21452) shows the housing that enclosed this assembly, but doesn't give a part number for it. It just gives a number for the whole motor, #21488. The online diagram is the same as the printed one, except for a notice that I can't read. The online parts list gives the same key/diagram number for the motor, "60", but calls it part #25821. The online list also includes a part not listed in the printed manual's list; diagram number 60A, "gear assembly", part #22106. But the online diagram doesn't show this. Because the motor is #60 and the "gear assembly" is #60A,I'm hopeful that this is the gear assembly I need. However, it says "...item no longer available." Where can I look to try to find this part? Is it possible to find just the blue plastic gear somewhere and to remove the old one and put the new one on? Thanks for your help with this. Mark

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Mark -
February 26, 2012
A:

The gears wearing down was pretty common with this model. Unfortunately, many of the parts for this unit have been unavailable for quite awhile. You can try various online part depot's. All of the ones I checked did not have this part in stock. I hope you are able to locate one.

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Andrew D -
Sears Technician
February 27, 2012
A:

Hi Andrew, Thanks for checking for parts. When I saw "...item no longer available" by most of the parts for this model, I had a feeling this was going to turn into a long internet search. I guess I'd better get going on that. Thanks for your help. Mark

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Mark -
February 27, 2012
A:

Hi Andrew, I just started looking online for parts. I think it might help to know who manufactured the unit, or the motor, for Sears. How would I find that out? Thanks, Mark

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Mark -
March 06, 2012
A:

That unit was manufactured by Emerson.

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Andrew D -
Sears Technician
March 07, 2012
A:

Thank you Andrew! I'm now well armed with knowledge for my quest!

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Mark -
March 07, 2012
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