Question about Hitachi RAS-09UH Air Conditioner

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A/c help Installed a new 2.0 ton 13 seer condenser and can not get the contactor to ingauge i have 240 on line side and 240 on load side when i push the pins down and the unit starts, i have 24v at the t-stat going in the contactor but it will not close, and i switched it out and the same thing happens, i checked the transformer and t-stat and all checks out good. why is the contactor not closing when it is calling for it?

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  • Erne Oct 22, 2007

    I have the same problem, I have 24v at the contactor going in and nothing happens

  • Erne Oct 23, 2007

    The unit is a 2.0 ton 13 seer Duro-Guard        MGF# DAGA024JA

  • tjiamtheman Nov 15, 2008

    I have duro guard 3 ton 10 seer heat pump ac come on but the heat don't.



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Do you have 24volts at the contactor when the T-stat. is set to cool or heat if unit is a heat pump? The outside unit must have 24v at the contactor to engage

Posted on Oct 20, 2007

  • 2 more comments 
  • John Tripp
    John Tripp Oct 22, 2007


    Erne, Hang on I'm going to look into the wireing digram and try to help you a little more. Get back with me if you need.

  • John Tripp
    John Tripp Oct 22, 2007

    Are we sure this is a 2 ton 240v unit? Hitachi RAS-09UH ?

    Specs say it is 9000btu 115v 10SEER Won't be able to help you until we get the right info. I'll be glad to do what I can to get you going.

  • John Tripp
    John Tripp Oct 24, 2007

    Erne I am sorry but the web site above your listing posted the incorrect listing, I'm still trying to get the new info that you sent today. Hang on as I'm multi tasking and trying to get you going too! But at this moment I think the wiring from the thermistat to the inside plit ant then from there to the ouside unit is transversed somewhere. On heat pumps they take up to 6 different wires. depending ont he extra features involve like emergency heat and the extra wires that tell the heat pump to engage. Tell me all the things you changed, like indoor t-stat and I will try to get the wiring print for the Duro-Guard        MGF# DAGA024JA

    I thought I had the print on time today but the PDF on the computer froze and I lost the web page.

  • John Tripp
    John Tripp Oct 24, 2007

    OK I think I have the wiring diagram For your AC When you are ready and I am home you can call or I will call you and walk you through this. I'm in SC  ESTime My cell number is 864-812-1887 I  won't answer because I don't have you in my call list. The home number is 864-487-4851 and I get home at 4:30 pm during work days. If you get my answer machine make sure you leave me a clear number I can reach you and a convient time.

     Duro-Guard is listed online as a RUDD but not to worry they are the same thing . My wife is Chinese and I'm southern Irish so please be patient if she should answer. There is no charge for my help, I really want to get you working, John Tripp



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