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  1. #14
    Join Date
    May 2014
    Location
    Bay Area California
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    I heard winter is on the horizon . . .


    Quote Originally Posted by 71CHOPS View Post
    Ignitor should pull more than 4 amps I believe....been awhile. I guess I need to get back into heat mode!
    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  2. #15
    Join Date
    May 2014
    Location
    Bay Area California
    Posts
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    Being in CA, I don't know anything about that.
    If you were a real tech, you'd solder a relay on that board and call it good to go.

    I do a triple evac with nitro to remove non condensables.

    I use 56% silver on everything except steel.

    Did you really need the " If you were a real tech " ??

  3. #16
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    5,798
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    Ignitor should be close to 3amps(2.5 lowest)

    Make sure the stepdown transformer is tapped properly or it can cause heating issues

    Gas is factory set at -.2"wc

    On startup with no gas, you will read anywhere from -2.5" to -3.5"

    Pull the combustion motor. There is a screen behind it. It is usually dirty with pollen and dirt. Clean the screen.

    Check the nozzle on the inside of combustion motor. Spider webs get in it.

    If the heat exchanger has holes in it, it can cause no light issues


    Sent from my iPhone using Tapatalk

  4. #17
    Join Date
    Apr 2018
    Posts
    68
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    Need to verify gas pressures. Voyager units are negative pressure burners. Manifold pressure should be -.2" and inlet gas pressure at 7-14". Checking current draw on the ignitor is good to check that it is working but I find the best way to test is by resistance on a cold ignitor. Getting up about 100 it is getting weak. Current on the ignitor will vary from one unit to the next dependent on the input voltage to it.

  5. #18
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    31,430
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    Inlet pressure has a sweet spot of right at 7 in on the voyagers, even though they say it can be higher.

    I have found some of those negative pressure gas valves do not like to open when there's much more than 7 in on their inlet side. Of course, Trane does not want to tell anyone this, but after a couple of hundred voyagers I found that yes, in the combustion instructions, they do recommend 7 in WC.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







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  7. #19
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
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    Quote Originally Posted by timebuilder View Post
    Inlet pressure has a sweet spot of right at 7 in on the voyagers, even though they say it can be higher.

    I have found some of those negative pressure gas valves do not like to open when there's much more than 7 in on their inlet side. Of course, Trane does not want to tell anyone this, but after a couple of hundred voyagers I found that yes, in the combustion instructions, they do recommend 7 in WC.
    Yup!
    You will hear the gas valve make some funny noises when the inlet gas pressure is too high. The valve isn't bad, just lower the pressure.


    Sent from my iPhone using Tapatalk

  8. #20
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    31,430
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    Yes. It is sort of a buzz or rattle.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  9. #21
    Join Date
    Mar 2019
    Location
    Milwaukee
    Posts
    17
    Post Likes
    Something I have bumped into a few times early in the season is spider webs in the orifice of the gas inlet on the inducer. You will smell gas but it’s not enough to ignite and if it does it’s just for a second or 2. Also if that screen after the inducer at the heat exchanger gets dirty that can cause some issues. Good luck keep us posted.

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