Question about Maytag SkyBox MBV1976A Beverage Dispenser

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Compressor problem, installing the Supco 3-in-1 Relay

My compressor quit, and unfortunately the serviceman who worked on it was not quite "up to speed." He installed the Supco RC0810, which worked for only a few hours. I have bought the RC0410 as recommended on this site, but can't be sure of the connections, as the old relay and wiring is gone. Can somebody who has done it tell me which of the 3 wires from the 3-in-1 (red, white, black) go to which terminals on the compressor (top, lower right, lower left)?
The 3-in-1 also has wires for a run capacitor, yet none is apparent on my Skybox. Does it use a run capacitor?
Any advice would be greatly appreciated.

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  • ms-ss Jul 02, 2009

    Thanks, Vic, for your quick and concise answer. It appears the RC0810 is installed correctly. The one I bought is the RC0410--similar except for a different hp rating.
    Problem is, most every time the compressor starts but runs for about 3 seconds then sounds like it stalls.
    Once in awhile the compressor will keep running and cool the box, but gets extremely hot within an hour. I have measured the red wire current at 6 amps, which is obviously too high. Don't know where to turn now except to try the other 3-in-1.
    I know this is tough, but do you think I should give up yet?

  • ms-ss Jul 02, 2009

    We bought it new 4 1/2 years ago. The warranty is only 1 year, so we are surely out of luck. Plus we had it repaired by a non-Maytag tech. After reading all the bad comments on FixYa, I get the idea Maytag won't repair it for any price. And they say no parts are available. I have seen a couple posts about a "compressor transplant," but I wouldn't be able to handle that. The compressor looks a whole lot like those in the $90 dorm refrigerators.


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Hi, If the 3 posts are top center and bottom right left, the black wire goes top the top center post. The red wire will go to the bottom right and the white goes to bottom left.
If the posts are bottom center and top right left, the black goes on bottom center and the red goes top left. The white goes top right.
If you do not see a capacitor, disregaurd the wires in the 3-1
I hope this helps you. Please let me know if I can assist you further.


Posted on Jul 02, 2009

  • Victor
    Victor Jul 02, 2009

    Mike, It sounds like the compresor might be going bad. I have seen this a lot and even hesitate and give my customers the choice on replacing the 3-1 because Ihave seen to many compreesor go bad soon after. It's not the 3-1's fault. It's just the compressor usually causes the re;ays to go bad because they are working to hard.

    How old is the refrigerator? Under 5 years it might have a warranty.


  • Victor
    Victor Jul 03, 2009

    Yes, the compressor is a major job. Some makes have 5 year warrenty on compressor but, the service call and laobor wil not be covered and they are pricy as well.

    Good luck Mike


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Posted on Mar 22, 2012

  • Steve Kissell Apr 01, 2013

    I too am having this same delemia,how do the thermostat wire play in without the full power demand going thru the thermostat?And where does the neutral wire from the power supply patch in, to the white wire going in to the compressor?


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Emerson model#CR519B. The unit just stopped working. If plugged in a motor runs for about 8 seconds and clicks off; about a minute later it repeats. Help

I had the same problem with a small wine cooler. It happened to me twice in 6 years. Both times I had to replace the starter relay.

I couldn't find any repair facilities willing to work on these small wine coolers or refrigerators, probably because the bill would be more than the used fridge is worth. If you feel confident around a volt/ohm meter and electricity, you could learn how to test this and maybe fix it yourself.

You shouldn't do any of this if you aren't familiar with using a Volt/Ohm meter and can safely and confidently work around electricity.:

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  4. I bought a Supco 3-in-1 on Amazon for less than $13 and hooked it up according to the supplied instructions. It lasted about 3 years.
Of course, the factory recommended repair is to buy the original replacement relay, but it will be more costly and harder to find.

I bought a Supco 3 in 1 Hard Start relay sized for the HP on my compressor. Mine was the Supco RCO810 (see link below).

NOTE: Before I replaced the starter relay and overload protection with a Supco 3 in 1, I learned how to test the compressor with a Volt/Ohm meter. If you don't have a meter, you can buy them online or inexpensive to free with a coupon at Harbor Freight.

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There is a clicking sound like something is trying to turn on, the freezer has quit cooling and now the frig is begining to shut down what can it be?

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sounds like you have a unit that may have bit the big one... there is one more alternative if your willing to give it a try.. the sale a 3-n-1 start assist that goes on the unit.. it has the capacitor and relay built into device and in a sense is a hard start for a froze compressor ... its last resort and i have seen some work for years after installation and others within a day back to same originally results needing a new compressor ... they are easy to install and actually have a diagram on them... you will have 2 power wires that just wire into the current power wires... supco 3-n-1 is one brand to try.. whereever you got the relays should have these devices... again its last resort but may save you several hundred dollars right now... good luck

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