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Emerson 79646-AP-G issue  Rate Topic 
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 Posted: Mon Apr 5th, 2021 06:07 pm
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John Rolli
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I recently restored and brought literally back from the dead a 1949 Emerson 79646-AP-G 12" fan. I was fortunate to have a fellow member sell me the much needed motor housings with bearings plus the rotor and gear box to complete this poor neglected train wreck of a fan. The parts were sourced from a 16" 79648-AP-G model and fit perfectly. However, I did notice this fan runs pretty fast on all speeds compared to my all original 12" G series fan. Low on the 1949 is like high on the 1952. Is the rotor different in the 16" model that it will run faster when paired with a 12" stator? If so I may have to find a 12" rotor then. I plan on running this on low on my nightstand for white noise this Summer but running this fast it surely will keep me awake. Thanks for any help on this.

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 Posted: Mon Apr 5th, 2021 06:28 pm
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William Dunlap
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I recently slowed down my 79648APG by installing a lower value capacitor in place of what was in there. I don't remember the value off the top of my head but it was only .25-.50uf less than what was there.Cheers,
Bill

Last edited on Mon Apr 5th, 2021 06:29 pm by William Dunlap

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 Posted: Mon Apr 5th, 2021 07:50 pm
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Noah Britt
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If the two rotors have different numbers of bars, I think that could be causing the problem.

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 Posted: Tue Apr 6th, 2021 05:34 am
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John Rolli
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Found the problem, the 16" rotor is longer with more surface area. Polished the shaft on my old one with Scotch Brite and crocus cloth and reinstalled and shimmed and it works as it should. Thanks for the help guys

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