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  1. #14
    Join Date
    Aug 2010
    Posts
    3,727
    You're making it more complicated than it should be.

    A combo cap is internally built like this

    1--C--2, where 1 goes to capacitor of one size, and 2 goes to capacitor of another.

    If you were to buy two of them separately you'll have
    So you butt two capacitors together like this at the **. Where you have the **, you'll hook it up as if it was the common terminal. Orientation doesn't matter.

    1---**---2
    You're going to want to use female-female-male Y cable. Imagine that its duct taped together and all you see are the three terminals. It helps to form mental image of the schematic.

  2. #15
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,517
    could have also used a 30-5 uf cap the 1 uf wont hurt a thing and if you feel better install the 30/4 when you get one

  3. #16
    Join Date
    Mar 2012
    Location
    Illinois
    Posts
    22
    The turbo cap is definitely nice to have but this was for my neighbor and didn't want to charge him too much which is why I went with the 2 separate caps to keep the cost down.
    He was happy with the price and has already referred 2 people to me that I will doing a clean and check on this weekend.

  4. #17
    Join Date
    Mar 2012
    Location
    Illinois
    Posts
    22
    In regards to the 30/5 uf cap, I was told was not with the tolerance which is why I did not go that route.
    I later spoke with my old A/C instructor who told me a 30/5 uf cap would be fine to use but by then i had already installed the other caps.

  5. #18
    Join Date
    Apr 2009
    Location
    Pan Handle, Fl
    Posts
    600
    I did the same thing a couple weeks ago for a Lennox unit. First time I have seen a 30/4. You did the right thing. I could of tried a 30/5 but I had a 30 and 4 on my truck so I built one. Def check amp draw when replacing capacitors esp if you go with a higher mfd, that will tell you if it will work or not.
    Insanity: Doing the same thing over and over again expecting a different outcome!

  6. #19
    Join Date
    Mar 2012
    Location
    Illinois
    Posts
    22
    Thank you everyone for all your help and advice.
    I really appreciate it.

  7. #20
    Join Date
    Apr 2011
    Location
    michigan
    Posts
    172
    Using a larger cap. is ok they are usually +or- 10% anyway. I agree the universal caps are more money and I have had to go back and replace every universal cap I have installed in a year or less, much better to go with the fixed value caps if possible, or I use the universal to get by until I get a fixed cap in.

  8. #21
    Join Date
    Jul 2007
    Location
    Chicagoland
    Posts
    481
    Quote Originally Posted by Toddbrewster View Post
    Using a larger cap. is ok they are usually +or- 10% anyway. I agree the universal caps are more money and I have had to go back and replace every universal cap I have installed in a year or less, much better to go with the fixed value caps if possible, or I use the universal to get by until I get a fixed cap in.
    Are you saying you have had multiple failures of turbos inside of one year of service?

  9. #22
    Join Date
    Apr 2011
    Location
    michigan
    Posts
    172
    I have had multiple failures of the universal capacitors but they were not the "Turbo" brand. The brand I have had almost guaranteed failures with is called Universal Motor-Mate p/n municap200. I sent an e-mail to the company at motor-rundirect.com and did not receieve any reply and that was a couple of months ago. Right now I use these capacitors to get me by if I dont have the oem fixed value cap on my truck, I put one of these universals on until I get the oem part and go back and change it. It is cheaper for the customer as I dont charge them for the universal cap, or the second trip, I do keep the customer happy and coming to me for their service needs. I have heard good things about the turbo brand although they are a little more money, I will give them a try once I am out of the muni caps.

  10. #23
    Join Date
    Dec 2011
    Location
    bedford ind
    Posts
    1,092
    Common for + or - 6 % on caps around here.

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