Question about AO Smith 5 HP 3450rpm R56Y Frame 208-230 Volts Replacement Air Compressor Motor - Electric Motor B

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A.O Smith Compressor Motor K56A28B23 will not run

I have had this unit for two years now and it's been in storage for 6 months while my new house was being built . At my previous house it ran fine . was used on and old garage dryer hook up . At the New house it will not run at all . the only Difference is the electrician installed a double pole 50 breaker instead of a 30 . The Motor is 230 V 14 Amp 60 HZ 3450 RPM 1 Phase Motor . I only get 120 V at each of The Caps . I'm getting 120 v From each side at the off and auto switch of the compressor and the start and run caps have both tested good and I have a new set that I tried .

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  • ctomcat6
    ctomcat6 Apr 04, 2014

    have the same exact problem moved compressor was in storage 8 months----tried new capacitors--220 power as it should to start motor don't start????what's up

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Hi; can i do a motor k56a28b23 230v work with 120v?


Some motors will work with 120 volt or
240 volt

You have to remove the small cover on the
end of the motor & see if there is a diagram,
where you move the wires for different voltages

Oct 25, 2014 | Craftsman 33 gal Air Compressor 6 hp...

1 Answer

Won't start


power 120 volt cannot to supply to 230 volt, maximum correction factor for voltage is 15%

Apr 04, 2014 | AO Smith 5 HP 3450rpm R56Y Frame 208-230...

1 Answer

The pump is ceased how to I get it off the motor


if motor was running hot probably ruined seals or pump housing replace whole unit less hassle

Oct 09, 2013 | AO Smith A O Smith Motors Century 1hp 115v...

1 Answer

What capacitors do i need to get to replace the ones on a 6 hp motor


Due to the nature of power factor correction and other sizing criteria it is best to open the can on the motor that protects the capacitor and order a comparable unit for capacitance, number of sections (- ie, start/run versus Start or Run) plus capacity and working volts AC. Unless ordering from the original compressor supply company, most parts houses will not have a cross reference with that data.

Jan 31, 2012 | AO Smith 6 Hp 3450rpm R56Y Frame 230 Volts...

1 Answer

1 HP electric motor hums but not turning.


check for a re-set button somewhere on the motor housing.

May 02, 2010 | AO Smith Pool Pump Motor Hayward Swimming...

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Need replacement motor for a model MMB10B


Unless you can find an HVAC shop with a NOS motor for this unit you will not find a drop in replacement. Even if you do get lucky and find a NOS motor be prepared to pay nearly as much for it as you would a whole new evap cooler.

That said, there are motors out there that will work, but you're going to have to make them fit with custom mounts.

It's still a little spendy, especially if you want two speeds like the original motor had, but you can get out for $80 or less if you're willing to settle for one speed (on/off).

boatandrvaccessories.com has a "Packard 40066" compressor motor for $69 plus $13 shipping. It may work but has only one speed.

Basically what you're looking for is a "48 frame", 1/8 hp, direct drive, 110-120v, 1075rpm, 1/2" shaft diameter and around 3" in length (to give you flexability when mounting), "totally enclosed" or "open drip-proof" housing (NOT "open"). Rotation can be either CW or CCW as you can mount the motor on either side of the housing and some motors are reversable. If you've got the skill to custom make some mounts then you can probably fudge some of these specs. The ones you can't change are the 1/2" shaft and the RPM. Do not exceed 1075rpm. The blower assembly simply can't be made to go much faster in that housing and if you try you will overheat the motor and burn it out very quickly (trust me on this one!). Most of the cheap motors I've found are 208-230v and I just don't see the point in having a small 220v PORTABLE evap cooler, that's just dumb.

After a LOT of online research I've found the following motors that would be a suitable replacement, with all the above mentioned specifications. I'm sure there are more, but cross referencing this information for someone not in the business is tricky and time consuming.

AdobeAir 1/8 HP 115V Motor for Adobe MMB10A RF031095 $116.66
http://www.comfortgurus.com/product_info.php/cPath/25_142/products_id/7451

Emerson 4856 (k055srj4796722b) (www.emersonmotors.com)
A.O. Smith 136A (UH1036NB) (www.aosmithmotors.com)
Magnetek 136 (now owned by A.O. Smith - www.aosmithmotors.com)
Fasco D733 or D261 (fasco.com)
Marathon X924 (www.marathonelectric.com)
AdobeAir RK232A check acehardwaresuperstore.com
Emerson K55HXKZT-9867

Grainger.com is a good resource but they are expensive.


The motors listed are suitable replacements, but have only one speed, "ON" or "High".

Packard 40066 - 115v 1075rpm $69 - SINGLE SPEED

A.O. Smith 321P177
A.O. Smith 323P077
A.O. Smith 323P487
A.O. Smith 323P490
A.O. Smith 323P677
A.O. Smith U6521
A.O. Smith UH1016
A.O. Smith UH1026NB
A.O. Smith UH9034
A.O. Smith US1016
A.O. Smith US1016NB
A.O. Smith ORZ1026
Brownell MTG3206
Century C045A
Carrier HC37DX120
Emerson 9034
Fasco D834
Franklin 8736010170
Franklin 8715810230
Franklin 8735810180
GE 3081
GE 3206
GE 3950
Grainger 3M658
Grainger 3M800
Grainger 3M828
Grainger 3M829
Marathon X302
Mars 03950
Packard 70066
Packard 40066
R.E. Michael 1E521
Reznor 55682
Reznor 64678
Rotom R12177
Rotom R12834
Rotom UH9034
Trane MOT6195
Universal U136
Universal U177
Universal U380
Universal U566
Universal U730


Good reading for selecting a replacement motor:
http://www.aosmithmotors.com/WorkArea/DownloadAsset.aspx?id=13100

I suppose that if you found a smoking deal on eBay for an "Open" type motor you could try it, but I doubt it would last long and make damn sure that ****** is grounded well.

Aug 07, 2009 | Mastercool Portable Air Conditioner

1 Answer

Amana Cooling Condensing Unit fan won't kick on


be aware that not repairing this asap that you are causing yourself more problems First I would change out the fan capacitor and see if this could be the problem. Secondly if the capacitor isn,t the problem change out the motor . By continuing to allow the system to cycle like this the compressor will take a dive on you costing more . Good Luck

Dave

Aug 04, 2009 | Amana PTH123B25AJ Heat Pump Air...

1 Answer

Compressor bad


I would think that compressor would cost a lot of money.So if I were you I would buy a new refrigerator .

Feb 02, 2009 | AO Smith 2 Hp Spl 3450rpm M56 Frame...

2 Answers

My freezer is about 2 years old, but has been in storage for about a year and a half. The green light comes on, and the motor is running, but it will not get cold or even cool.


Hi ndntwiggy,
Ngafm at your service

Your said,your freezer is about 2 years old, but has been in storage for about a year and a half.
And the green light comes on, and the motor is running, but it will not get cold or even cool.

When a compressor is not run for more than a year, or 2 years there is a possibility that the seals dried out from non use and the freon leaked out.
Compressors have oil in them that when run even once a month will lubricate the seals and keep them soft and moist! .
Just like in the older cars from the 1960's or 70's the air conditioners had to be run once a month even in the winter to keep the seals lubricated or they lost the freon!
Then they started to make the defroster turn the compressor on as to lubricate the seals every time it rained or snowed and you needed the defrosters and this serviced the compressor as in todays cars.!
So you need service to fix it and more than likely it's out of freon refrigerant .
Let me know your end results.
ngafm
Please give me a good rating for my accurate advice,
before you sign out of our site.
thank You ngafm

Sep 09, 2008 | Haier 5 cu. ft. / 142 liter Chest Freezer...

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