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 Posted: Fri Nov 16th, 2018 08:44 pm
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Sean Campbell
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Hello All
''Tis the season, so I decided to grab a vintage Vornado heater fan. It's a model 45H1. When I plug it in, the fan works alright, albeit with a slight rattle. However, when I turn the heater on, the the motor cuts out and the blades stop moving entirely. The coils glow bright red almost immediately though. Is this normal? (Also, any other info or facts on this fan would be appreciated)

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 Posted: Fri Nov 16th, 2018 11:32 pm
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Levi Mevis
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I think that what your heater is doing is normal, I believe the way your heater/fan works is that the fan runs just as a fan, and when the heater is turned on the fan cuts out and you just have the heater running which is the way most of those older heater/fans worked.

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 Posted: Sat Nov 17th, 2018 01:21 am
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Sean Campbell
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Thanks for the info Levi, makes me feel a whole lot better running it! Any idea when it dates to?

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 Posted: Sat Nov 17th, 2018 01:34 am
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Levi Mevis
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I would guess probably late 1950s or early 1960s. What does the ID tag say? If it says O. A. Sutton the bottom it's made in the early 1950s if it just says Vornado on it then it dates to the late 1950s early 1960s.

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 Posted: Sat Nov 17th, 2018 02:23 am
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Sean Campbell
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It says O.A. Sutton, so I guess its early 50's.  Also, I just tried it out. The rattle on the fan setting has gotten much louder and the header setting gave off a funky smell. Then set off the fire alarm. :shock:

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 Posted: Sat Nov 17th, 2018 11:41 am
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Lane Shirey
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My guess is that the fan should be running to keep the coil from overheating. The motor probably should be disassembled and cleaned. I’ve found many heater fan motor bearings to be quite gummy and sticky, likely because the heat evaporated the volatiles out of the oil, leaving a sticky residue. 

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 Posted: Sat Nov 17th, 2018 01:16 pm
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Levi Mevis
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The reason why I had said that I thought maybe the fan wasn't meant to run with the heater setting was because there are some heaters out there that run just fine without fans and that were designed that way intentionally, such as parabolic heaters and your old radiant heaters that used ribbon style nichrome heating elements arranged in a zigzag pattern inside a rectangular metal case and usually had 2 different power settings.

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 Posted: Sat Nov 17th, 2018 03:14 pm
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Sean Campbell
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Any ideas on how to dismantle it? I just tried by removing all the screws on the back. The inner cone, motor, and blade assembly came loose inside the casing, but I couldn't open the casing. It has a chrome strip around the seem of the casing halfs, but it looks like it would do damage to open it?

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 Posted: Sat Nov 17th, 2018 03:33 pm
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Levi Mevis
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Could you post a picture of what you're talking about Sean? I can't seem to picture what you're talking about, plus it would help me see what you're working with to help direct you in disassembling the motor on this heater to clean an relube the motor.

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 Posted: Sat Nov 17th, 2018 04:00 pm
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Sean Campbell
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Sure! Here's some pictures of the top, side, and back of the fan.





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 Posted: Sat Nov 17th, 2018 04:32 pm
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Levi Mevis
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If you remove all of Those screws from the back of the heater the heater's case just come apart where the chrome seam is, which is just there for decoration, it's not actually holding anything into place.

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 Posted: Sat Nov 17th, 2018 05:31 pm
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Sean Campbell
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It may not be the chrome seam, but something is holding it together. When I tried to pull it apart after taking out the screws, the two halfs wouldn't budge. I assumed it was the chrome strip holdit in place, but maybe it's something inside?

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 Posted: Sat Nov 17th, 2018 05:34 pm
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Levi Mevis
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Did you remove ALL the screws? Because there's screws in the middle of the back cover that need to come out as well.

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 Posted: Sat Nov 17th, 2018 05:36 pm
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Sean Campbell
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I did. The entire center section with the mechanisms came free inside the casing, I just couldn't get the casing to separate.

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 Posted: Sat Nov 17th, 2018 05:43 pm
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Levi Mevis
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Hmm, sometimes you need to use a little force to pry those heater cases apart, try using a medium sized standard blade screwdriver and working it along the seam of the heater casing and see if that don't get it apart, I know I've had to do that with with old fan motors that the motor housing was stuck tight and with a little force from a screw driver inserted in the seams the two halves separated no problem.

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 Posted: Sat Nov 17th, 2018 07:00 pm
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Sean Campbell
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Ok, I'll give that a try when I can! Fingers crossed

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 Posted: Sat Nov 17th, 2018 10:33 pm
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Kevin Massey
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Hi Sean. You fan motor is supposed to slow down when its turned to heat. Power to the fan motor runs through the nichrome element. As the element heats up the resistance changes and the motor should speed up some. Those three position switches can go bad also. Clean and oil the bearings is a good place to start. If you leave it on heat with no fan running it could possibly catch fire.

Last edited on Sat Nov 17th, 2018 10:35 pm by Kevin Massey

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 Posted: Mon Nov 19th, 2018 01:25 am
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John McComas
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Kevin and Lane are correct.  The fan should go fast on "fan only" and slows way down on "Heat" 
I agree also that fan should be lubricated and can turn easily... 
There's not much power available to the fan when it is switched to "Heat".

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