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  1. #14
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,741
    early model g20 has the blues prolem

  2. #15
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,032
    Originally posted by madeinusa
    Why don’t you idiots just give your phone numbers out so you can give every homeowner in the country step by step free advice so no contractor in the country can make a living.

    All you idiots are doing is building a file where every homeowner can go hit search and solve their problems here instead of calling a local contractor.

    What the heck do you think the Pro technical forum is for? Did you ever possibly think it might be to discuss matters such as this?
    Since everyone can get into the pro section what is the difference?

    This type of thread is what catches my attention. This is the tread that we can teach each other. Some tech will read this thread and remember that older G20s had an issue with the original control module. Now a few HO's will also. Bitter medicine.


    As far if Wishful needs to be helped, not my call. I spend too much time here as it is, and don't need to be policing this site.

    Beware of advice given by some guy on the Internet.

  3. #16
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    check the heatexchanger while you are there. the G-20 had problems with deteorating hx. seemed to me it was the hx that was painted that had most of the trouble. lenox later changed it to a nonpainted one and seemed to solve the problem.

  4. #17
    Join Date
    Jun 2003
    Location
    Battle Creek MI Occupation: Simi-retired 57 year old, in home and shop appliance tecnician, (since 1967).
    Posts
    62

    Exclamation

    Hey folks, I didn't mean to tic anybody off. I have deals with contracttors in this area to help out when they are overburdened or shorthanded. Since I got cancer I can no longer work full time. But a lot of days I feel good enough to be useful, and with some of the young guys needing more experience we can all work together. On that note, I found my tech manual for the Lennox in question, and the furnace will either be fixed right or condemned. By the way-- do you think the average HO would know what flame rectification is, or microamps for that matter.
    I was just using this forum to jog my memory. If you do your jobs well & charge a fair price, then you have nothing to worry about.
    Thanks again to the good folks with the helpful attitudes.

  5. #18
    Join Date
    Mar 2005
    Posts
    657
    Steve Wiggins
    Professional Member

    Registered: Nov 2000
    Posts: 4667
    Try reversing the polarity. Your 1.4΅A reading should go up to 2.8΅A
    __________________


    Steve how do you figure that? If you reverse the polarity on a DC ampmeter you should get -1.4uA. Or are you just trying to be cute? The only time I have seen what you said was when my multimeter went flakey.

    Sounds to me like the pilot orifice is pluged up. Try replacing it. We seem to have a lot of problems with them on propane especially in damp basements and Roof Top Units. By the way you should have around 3 to 5 uA of flame current.

    [Edited by lakeman1234 on 10-24-2005 at 12:42 AM]

  6. #19
    Join Date
    Mar 2004
    Posts
    20
    Don't worry too much madeinusa.
    Most homeowners don,t have the proper tools to do the trouble-shooting, much less what to even look for.Just take a look the money you've invested in your equipment to do what you do.Years ago I owned a tire & auto repair business.Busted my --- 15years trying to keep up with Sears,PepBoys,Sams,...etc.When I soldout I had over 50K in equipment and trucks air-compressors,balancers...you name it.Now when I have a flat or a tire out of balance I have to go to someone who's in the tire buisness.Even though I know how to do it..I don't have the equipment to do it.I remember when I worked for a restaurant chain just about every gas fired appliance they had used RobertShaw valves. At the time i could tell you anything you needed to know,but now I'm trying to keep up with the rapidly changing HVAC technology I can't remember that old stuff anymore.I didn't use it,so I loosed it.What's killing me is all these shoddy cut-throat competitors.It's hard to turn a buck anywhere. I can't have the whole pie but I can sure have my piece.Just find your niche and keep a bead on it.Don't be afraid to tell someone what you know, thats how we learned what we know...All of us had to learn at one time too. I visit this site to laugh and LEARN...it's FUN! I've had some Vets on this site save my butt a lot of times just because they wanted to and I really appreciate them.By the time you know alot it's time to die.Don't let all that experience and knowledge go quitely into the night, tell me what you know and your eyes have seen , WE NEED YOU!

  7. #20
    Join Date
    Apr 2004
    Location
    Bartlett, IL
    Posts
    6,619
    I don't know what kind of advice you guys are giving this poor guy, but you're gonna get him hurt, it's obvious the problem lies in the time delay in the ODFM this is the first thing you want to check before goin through all that other trouble.

    Good luck

  8. #21
    Join Date
    Jan 2005
    Posts
    27
    check the incoming gas pressure in the house. see what it does when the valve opens if below 4" water colume its a problem turn on other appliances also .may need the meter regulator turned up or keep changing out spark modules like everyone else does LOL. good luck

  9. #22
    Join Date
    Nov 2000
    Location
    Waco, Texas, USA
    Posts
    6,153
    Originally posted by wishful

    Thanks again to the good folks with the helpful attitudes.
    Yeah we have helpful attitudes alright.....we are helping the legitimate contractors you are stealing work from!
    "And remember my sentimental friend......that a heart is not judged by how much you love, but by how much you are loved by others" - Wizard of Oz.

  10. #23
    Join Date
    Jul 2002
    Location
    St Paul, Minnesota
    Posts
    3,468
    Originally posted by wishful
    Hey folks, I didn't mean to tic anybody off. I have deals with contracttors in this area to help out when they are overburdened or shorthanded. Since I got cancer I can no longer work full time. But a lot of days I feel good enough to be useful, and with some of the young guys needing more experience we can all work together. On that note, I found my tech manual for the Lennox in question, and the furnace will either be fixed right or condemned. By the way-- do you think the average HO would know what flame rectification is, or microamps for that matter.
    I was just using this forum to jog my memory. If you do your jobs well & charge a fair price, then you have nothing to worry about.
    Thanks again to the good folks with the helpful attitudes.

    Wishful, hope you are hanging in there. Seems like cancer has taken many members of my family on my mother's side. The other side goes out thru other illnesses and heart attacks. Hope you can hang in there and still be useful and productive.

    If you are a homeowner and seeking advice, so what? If you get help here once, the next time you WILL probably call a contractor cause the next problem will be more difficult.

    Now, with the Lennox G20, I always carry a new pilot assembly, actually several if I can. On any tune up, if I notice that the pilot hood is scorched/blackened/rusted, I suggest to the homeowner that this needs changing now. Why? Because it is a problem waiting to happen, and it will fail in the middle of the night when it is cold out.

    Flame rectification cannot be proper with a rusted hood on the pilot cause that is the path (thru the flame) that makes it happen. I don't have the part number handy but it has the small orange wire leading to the pilot assy.

    Depending on the model, this can be a chore to change out and I have certain tools that make it easier like a magnetized screwdriver. Any homeowner attempting this change out will end up in the looney bin if they have never done it before. Same goes with the door springs that sometimes need to be taken apart to change the pilot. I think I only removed the door twice in the last five years but I have changed many pilot assy's each year as the Whisper Heats were populare here once.

    I would like to meet the design engineer and the ones who authorized this setup. Talk about Job security. The W.H. and the Pulse sure provide it.

    To those bashing homeowners attempting repairs all I can say is how often do you attempt something out of your field? We all do it but in the end when the job is major we end up in the yellow pages, don't we?

    PS. Wishful, use a good flashlight with a small beam and open the door carefully and look up into the heat exchanger. Many times you will see evidence of cracking at the curve even with the door on. Hard, but can be done.

  11. #24
    Join Date
    Mar 2005
    Posts
    657
    2hot2coolme
    Professional Member

    Registered: Apr 2004
    Posts: 1460
    I don't know what kind of advice you guys are giving this poor guy, but you're gonna get him hurt, it's obvious the problem lies in the time delay in the ODFM this is the first thing you want to check before goin through all that other trouble.

    Good luck



    This seem off in the twilight zone for advice.

  12. #25
    Join Date
    Jun 2003
    Location
    Battle Creek MI Occupation: Simi-retired 57 year old, in home and shop appliance tecnician, (since 1967).
    Posts
    62
    Back in '88 I was boss over 34 technicians, both road and shop. Wish I had the good ones back, but I sure don't miss the cry-babies that thought somebody was cheating them, even though we were all in the same boat. My ligetimate contractor friends keep calling me back, that must count for something. Time to get back to work guys.

  13. #26
    Join Date
    Mar 2005
    Posts
    657
    Mike J is right. Just hang in there. They are bashing people all the time. Most are afraid some poor soul is going to steal a job from them, or they are going to give that homeowner just enough information to kill them selves. I tend to think you have asked questions that are above the DYI level. Most home owners wouldn't know what flame current is. Personally I don't think some of the "qualified techs" know that either. Good Luck

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