Autoformer

Discussion in 'General RVing' started by boisegolfer99, Aug 2, 2006.

  1. boisegolfer99

    boisegolfer99 New Member

    I bought a used Hughes Autoformer on EBAY, it did not come with a user manual. The model number is RV36HLA, does anybody have a manual I can get a copy of?
     
  2. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer



    You can get the guide in Acrobat format (PDF) at this link:

    Autoformer manual

    I have one, too. It works great.
     
  3. Grandview Trailer Sa

    Grandview Trailer Sa Senior Member

    Re: Autoformer

    Sorry, but I get a blank page when I click on the link. Does anyone else?
     
  4. boisegolfer99

    boisegolfer99 New Member

    RE: Autoformer

    I go a blank page also. I think this manual is the one on the manufacturers web-site. I have that one. The unit I have is an older model and I would like to know for sure what the lights mean.
    Thank You
     
  5. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer

    The manual is the one on the website. It is fairly large so it takes a bit to load. When you are looking at the blank page, it is downloading.

    Anyway, why do you need a manual?
     
  6. s.harrington

    s.harrington Senior Member

    Re: Autoformer

    You guys getting a blank page go upgrade your acrobat reader.
     
  7. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer



    Here's the link to upgrade your Acrobat reader for PDF's:

    Adobe Reader 7.0.8 (Be sure and UNCHECK each little box before you download.)

    It doesn't have anything to do with the Autoformer manual, but if you need it; you need it. Durn 'puters!
     
  8. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    I need the manual for a couple of reasons.....I need to know what the lights mean and I would like to know the specs. I have downloaded the manual from autoformers.com. Their representative, Robert, told me that was not the manual I needed and he did not know where to get the correct one.
     
  9. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer

    Perhaps if enough of us called and asked about the RV36HLA then they might look into their archives for a description of the lights.

    Hughes Autoformers
    1189 N. Tustin Ave.
    Anaheim, CA 92807
    888-540-1504 Sales & Service
    714-630-7609 Fax

    In the mean time, why don't you describe the lights, and we can compare them to the lights on the newer models and make some logical conclusions?

    For instance,

    the AMBER light means the park power is SAFE TO USE.
    the RED light means the park power is low and the unit is BOOSTING.
    On a 30 amp model there is only one red light, and the 50 amp model there are two (each leg could be boosting independent of the other leg).

    So, how does this compare with the model that you bought as far as lights that are on the unit?
     
  10. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    There are 3 lights...2 amber one red. When I plug it in all 3 come on a stay on. I do not know if this is correct operation or not. When I bought this unit it was advertised as "fully automatic" I need to know if this is true. I know at least one of the older models was "manual", not automatic. I need to know which one I have.
    Thanks, Charlie
     
  11. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer

    Charlie, everyone that I talk to says to call Robert @ Hughes to get that information. (I know you said you already did.) One of my sources said to call before 8:30 am PT. One source said he's VERY hard to get to the phone.
     
  12. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    Well......here is the answer I got from Robert!
    Charlie

    This model was manufactured by the previous owner unfortunately I do not have any manuals or can I explain how to use it without seeing it you should have asked the person selling it to you to explain how it works or it to manuals from them



    Have a nice day

    Robert Petree
     
  13. ARCHER

    ARCHER Senior Member

    Re: Autoformer

    Sure hate to sound dumb, but what is a AUTOFORMER?
     
  14. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer



    Charlie, that's a tough lesson to learn, but don't blame Hughes for it. Its the chance you take when you buy off of Ebay.

    There probably should only be one light on when the unit is operating. It logically would be the RED light. The AMBER lights (on yours) probably came on when the unit was BOOSTING. The fact that your AMBER lights are on all the time could mean that your's is boosting all the time, and that probably indicates a faulty unit. You could check the output with a voltmeter to confirm whether it is boosting or not.

    My logical assumption could be completely upside down. It could be that the AMBER lights go OUT when it is boosting.

    ARCHER, an autoformer is a transformer with extra "taps" that get switched into the output when the park line voltage gets below 112 volts (usually). It "boosts" the line voltage back to 117 when that happens to keep the MH at 117 volts. When the park voltage is "OK", it just passes it straight through.

    LOOK OUT FOR TECHNICAL STUFF: The term autotransformer usually designates a particular type of transformer; one that has a common connection from the input to the output. This configuration allows them to make a smaller transformer for the same current handling capability. This also means that this transformer configuration does not isolate the output from the input.

    I notice now that Hughes is selling a larger and more expensive tranformer. It probably is a different configuration that isolates the output from the input. I'm guessing, but if that is the case, then it won't be called and autotransformer.
     
  15. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    I'm not trying to "blame" anyone, I am just trying to get answers. I know the risks on EBAY I have been buying and selling for years.

    I measured the output of the unit with "no" load, input voltage is 121vac. 128vac with the switch on low boost, 121vac with the switch on high boost. All three lights on in both positions.
    Charlie
     
  16. TexasClodhopper

    TexasClodhopper Senior Member

    Re: Autoformer

    It would have been nice to know about the "switch" from the beginning. The newer models have automatic relay switching inside (no external manual switching).

    It appears that the lamps are just pilot lights. From your measurements, it looks like the "high" boost is not boosting at all, but the low boost is boosting about 6%.

    I wouldn't plug my MH into it.
     
  17. DL Rupper

    DL Rupper Senior Member

    RE: Autoformer

    I have a Autoformer that is about 5/6 years old. It also has a switch on it that goes from auto-to-no-boost-to-manual-boost. 3 positions; however, it is currently in my 5'er in storage about 6/7 miles away. I also have instructions with it in the box. Next time I go to check on the 5'er, about every 3 days, I'll lift the bed storage and get the instructions out and check the model #. Best case if applicable I'll send a copy of them to you (boisegolfer99). The only thing I can remember off the top of my head is that it works best in manual boost, that leaves the boost on all the time. In auto every once in awhile I will notice my voltage in the yellow (low 105v)) on my monitor. Never happens in manual boost (always above 110v). Not sure if the auto function is the top or bottom position on the switch. No boost is the middle position.

    Overall I wouldn't run my A/C without having one handy in case of low voltage at the RV Park. Low voltage is fairly common on hot days with lots of campers using their A/C. Low voltage is very hard on A/C compressors. Causes them to draw more current, thus heating the intrnal circuits up.
     
  18. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    Thanks, I am not sure it is the same model since my switch has only 2 positions but the instructions may still help. I am not plugging anything into it until I know it is OK. I am also negotiating with the seller to return it.
    Charlie
     
  19. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    The seller on EBAY has agreed to take it back, but he is not happy.
    Thanks for all the input, Charlie
     
  20. boisegolfer99

    boisegolfer99 New Member

    Re: Autoformer

    A word to the wise......the seller has relisted on EBAY. Dick at autoformers.com says the circuit board is bad. Let the buyer beware!
     

Share This Page