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Westinghouse resistor?  Rate Topic 
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 Posted: Mon Jun 25th, 2018 06:57 pm
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David Hoatson
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Someone sent me pictures of a broken part inside a mid-1950's Westinghouse desk fan. Model 12LA4.
Is this a resistor for low speed? Anybody know a replacement part?

Thanks. 

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 Posted: Mon Jun 25th, 2018 09:34 pm
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Russ Huber
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If it's an AC induction motor and the inside of the base has lots of room you can rig a speed coil inside the base from a stump with motor of comparable size. Just remove the coil off the switch. 

Last edited on Mon Jun 25th, 2018 09:35 pm by Russ Huber

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 Posted: Tue Jun 26th, 2018 11:24 am
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John McComas
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Like Russ said, try to come up with a speed coil.  As you know, resistors will drop speed, but the electricity used
will not drop, and the base becomes a hot plate.  I'm thinking between 50 to 100 ohms and 25 to 50 watt rating.
Try substituting a 100, 150, or 300 watt incandescent bulb, and see what works best.
100W = 144 ohms
150W =  96 ohms
300W = 48 ohms

Westinghouse was just being "frugal" by NOT using an efficient inductive speed coil...
The consumer gets to pay for the wasted electricity/heat when the fan is running on low speed.

Happy Fanning!

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 Posted: Tue Jun 26th, 2018 12:17 pm
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David Hoatson
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The lady that contacted me says the fan won't run. If the resistor broke, it would still run on high, correct?

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 Posted: Wed Jun 27th, 2018 12:30 pm
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John McComas
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David Hoatson wrote: The lady that contacted me says the fan won't run. If the resistor broke, it would still run on high, correct?

Yes, It gets bypassed for high speed.  Resistor is only for medium or low speeds.

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 Posted: Wed Jun 27th, 2018 01:19 pm
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David Hoatson
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Her fan won't run on high. Blade spins freely until you turn it on, then it locks up and buzzes. 
Is this a 2-wire shaded pole?

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