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Vornado B26F1 hum after startup  Rate Topic 
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 Posted: Sun Jul 22nd, 2018 02:24 pm
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Bob Landolfi
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I just replaced the motor in a Vornado 1950 B26F1 hassock fan with one from a 1951. The 1951 ran pretty well in the original except the blade was out of balance and the cowl bushings were shot, and it was cosmetically far inferior to the 1950. So I replaced the cowl bushings and used a modern plastic replacement blade and mounted the fan body in my 1951 frame. Fan runs smoothly and without rattles, but after about 2 minutes it starts humming, which gets slightly louder over time until it's just a little bit louder than the motor at its worst (if the regular motor is 20 db, the hum is about 25). Is that a function of the fan being all metal, or are the bearings starting to go? I can tell the fan's been taken apart because the mount bushings are new and the motor orientation is correct for the oil ports but the fan face is upside down.  But I'd rather not take the motor off if I can help it, even though the upside-down V bothers me a little. 
I've oiled it well with the blue can small motor oil; it doesn't seem to take much in, so I tried reaming the oil ports with a twist tie. So far no joy. Anything else I can do short of opening the motor up and oiling the bearings directly? Or is an all-metal fan just going to hum naturally? (I have a 1955 B28F1 hassock that is considerably quieter, but it doesn't have the hollow metal the B26 does). I made sure the metal table on top is of the B26F1 on tight and added washers, which seemed to solve rattles and hums in the past with the previous motor.

Thanks in advance for any ideas. 


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 Posted: Mon Jul 23rd, 2018 01:09 pm
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Bob Landolfi
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I got tired of looking at the Vornado logo upside down and decided last night to open up the motor. After giving the bearings a good cleaning and oiling, the volume of the hum is now approximately the same as that of the blades/motor. So it was dirty and needed oiling. I doubt this was any quieter when it was new.

One question I still have: Is it necessary to take the front half of the engine housing off to oil the bearings? Mine was stuck on the coil and I didn't want to risk breaking the stator wires trying to get the front housing off. So I just oiled the area around the motor shaft from the front. After putting it all back together, I realized that I could have taken the back of the housing off, pulled the rotor out, and oiled the front bearings that way.

Last edited on Mon Jul 23rd, 2018 01:15 pm by Bob Landolfi

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 Posted: Sat Aug 4th, 2018 10:46 pm
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Kevin Massey
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I have a vornado hassock fan from the mid 50's. It has oil tubes front and rear. Pictures would greatly help.

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 Posted: Sun Aug 5th, 2018 06:34 pm
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Bob Landolfi
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Mine has the oil ports too, but they were either clogged or the fan was neglected, because I oiled those as soon as I got it and ran it for a few days and still got the hum. Oiling the back and front bearings directly did the trick.


Does your hassock fan have a rubber top or is it all metal? If all metal, you have the same one I do (B26F1, 1950-54?), otherwise it's a B28F1 (55-57?). I have both models. As far as I know, those are the only 2 Vornado hassock fans. What I like is they are powerful and will cool a couple rooms each.

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 Posted: Sun Aug 12th, 2018 02:44 pm
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Kevin Massey
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Mine is grey and all metal.

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