Emerson 79646 fan help

[Tim Babcock]

I bought an Emerson 79646 and it has the sardine can capacitor. Its all there and in good condition but will need to figure out what replacement cap will work. Also need a schematics for this fan. It has three wires to the head and the wire was broken to the head.So what capacitor will work on this fan? and if anyone can post a wiring diagram for this fan I would appreciate it.  Thanks for the help.

[Tim Babcock]

will this cap work?  https://www.ebay.com/itm/372083773453

[Bill Dunlap]

From my experience, a range of capacitance will get you where you need to go. I like to have 1.5, 1.75, 2.0 and 2.5uf caps handy when I'm replacing the original. Each will give different start up and run speeds. Select the one that works best for your fan.

[Derek Warnecke]

I used a 1.5uF 450VAC capacitor on mine:

https://www.ebay.com/itm/273514282871

This wiring diagram should work:

http://www.wkinsler.com/fans/emerson73646AKdiagram.GIF

 

[Stan Adams]

Yep you want a 1.5 due to the fact you are running on higher voltage than when the fan was built. A 2 UF will give you a very high low speed.

[Tim Babcock]

I am getting the cross reading on ABC head wires. So hoping its a good stater.

[Stan Adams]

Your fan must be a military model as the standard models are shaded pole.

[John McComas]

Bill, Derek, and Stan are all offering good advice 🙂🙂🙂

I would use the cap Derek listed from eBay:

1.5uF 450VAC

[Tim Babcock]

27 minutes ago, John McComas said:

Bill, Derek, and Stan are all offering good advice 🙂🙂🙂

I would use the cap Derek listed from eBay:

1.5uF 450VAC

Already bought it thanks.

[Malcolm MacGregor]

I use to wonder why the voltage rating needed to be so high. It was explained to me this way:  Remove the blade, and run the motor on high speed, then measure the voltage across the capacitor while on high speed.  It is amazing but there is usually 350-400 volts a.c. present.  Who knew??

[Tim Babcock]

I am in need of finding a supplier I can buy some friction rivets from. This fan I had to grind off two of the info plaque rivets. They would not come out. Two came out fine but I had to destroy two to get them out. Now I need some replacements. I looked on eBay and could not find any. Not sure if I am calling them by the correct name. Any help appreciated.

[Tim Babcock]

Is this capacitor pole specific? 

[Derek Warnecke]

7 hours ago, Tim Babcock said:

Is this capacitor pole specific? 

It is not.

[Mark Olson]

On 4/27/2023 at 7:08 PM, Tim Babcock said:

I am in need of finding a supplier I can buy some friction rivets from. This fan I had to grind off two of the info plaque rivets. They would not come out. Two came out fine but I had to destroy two to get them out. Now I need some replacements. I looked on eBay and could not find any. Not sure if I am calling them by the correct name. Any help appreciated.

Hi Tim, those are known as "screw nails" or "drive screws". McMaster-Carr has them in zinc plated steel and stainless steel. I do not know of a supplier that has them in brass. You may find brass rivets to use instead, if you want brass.

Edited April 29, 2023 by Mark Olson

[Tim Babcock]

Thanks for the info.