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Harman Stove Defect

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by mlwschultz, Dec 14, 2009.

  1. goatman-68

    goatman-68 Member

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    Nov 30, 2008
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    129
    Loc:
    Central Wisconsin
    That was a great idea for a test. I just cleaned mine and had major carbon again at the feed tube. I was watching it last night and you could see no pellets in the feed tube, just fire. The dealer is on there way out today to replace my burn pot, can't wait to see the difference.....

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  2. ducker

    ducker Feeling the Heat

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    Apr 22, 2008
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    378
    Loc:
    Leominster, MA
    they can cause the pellets to "overfire" and cause damage to the end of the feed tube as been illustrated in a couple of different threads.

    I spoke with a harman repair tech at the stove shop I got my P38 from, and he stated that they filled in the holes with a putty like substance. (2 different putty types, when mixed together forms a hard bond in 20minutes)

    That Harman added those 5 holes to assist in creating a cleaner/hotter burn to reduce clinkers... only to cause potential failure in the feed tube.

    I found if anything, my heat output increased.
  3. tinkabranc

    tinkabranc Minister of Fire

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    1,641
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    South Coast MA
    Anyone know when Harman actually made the 5 hole change at the bottom of the burnpot?
    It had to be prior to the 07-08 models.

    My XXV was built in 2005 and my Advance in 2006.
    Both have the 5 holes at the bottom of the pot near the auger tube.
    So far, neither seem to show any damage as of yet tho.
  4. el gordo

    el gordo New Member

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    central maine
    i have an '06 P-68 that i have used for a couple years( which i love) and i haven't seen any issues yet regarding this defect. and i have been keeping a keen eye on these threads and my stove to see if it something i should worry about. by the way this forums is great!
  5. el gordo

    el gordo New Member

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    i have an '06 P-68 that i have used for a couple years( which i love) and i haven't seen any issues yet regarding this defect and the stove has the 5 holes down near the tube. and i have been keeping a keen eye on these threads and my stove to see if it something i should worry about. by the way this forums is great!
  6. lecomte38

    lecomte38 Feeling the Heat

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    Central Mass
    Do you people with the pre 07 stoves with the 5 holes also have 2 holes up on the sides of the pot?
  7. krooser

    krooser Minister of Fire

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    JB won't take the heat... to fill the holes involves about 30 seconds worth of welding time.
  8. mnkywrnch

    mnkywrnch Minister of Fire

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    Baldwinville ma
    Exactly weld it grind it smooth and your done.
  9. tinkabranc

    tinkabranc Minister of Fire

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    My XXV has em like in goatman-68 pic, but the Advance does not.
  10. trogers

    trogers New Member

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    Am I correct in assuming that you have to remove the burnpot to weld it?
  11. goatman-68

    goatman-68 Member

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    Got mine replaced today with a new one. I'm happy and the stove is happy............. I can now see unburned pellets in the auger tube so it made a big difference.

    Attached Files:

  12. maglite67

    maglite67 New Member

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    If you don't want a charge bring the stove into the shop the dealer doesn't build the stove they sell and service them. The warranty covers parts and labor and not travel I guess you want the dealer to clean and put pellets in the stove also.
  13. goatman-68

    goatman-68 Member

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    Hi Nick, nice to see you post on the forum......... Actually I have absolutely no problem with the trip charge. I manage a rebuild shop and I know it cost money to do business, not to mention they were 45 minutes away.:)
  14. maglite67

    maglite67 New Member

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    They won't let me pm yet im too new of a user but I will be back to answer questions thanks for turning me onto this fourm.

    Your service tech

    Nick
  15. Elad

    Elad Member

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    Loc:
    Northern Mn
    Only have them 2 hole at 10:00 & 2:00 position above feedtube. Been wondering about restricting them holes.
    I have an 09 P68 model and I have pellets burning in/at the end of the feed tube area :(
    Lower speeds you can see the auger glowing red. Seems to be too much air coming out of the tube?
    Running 4 on feed now to prevent that.

    Keeping a watch on this thread!

    Squeaks I had were from tight bearings on the cam arm assembly. Didn't have any silicone spray so used a drop of gun oil on all them dearings.
    Squeaks are all gone now :)
  16. goatman-68

    goatman-68 Member

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    It was a pleasure to have you work on my stove. You are very proffessional and a wealth of information. I would have brought the stove to the shop but trying to carry that cast iron anchor down two flights of steps then throwing it in the back of the pickup just wasn't worth it.....L.O.L

    I hope you enjoy the forum, Welcome........
  17. maglite67

    maglite67 New Member

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    Was great working for you. I'm going to log off for the night and hope to see you on here soon and not your house.
  18. cantman

    cantman Member

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    Pennsylvania
    I called my dealer today and explained the new style burn pot for the XXV. He called Harman and they stated to him that there is not a warrantee or upgrade for the XXV burn pot?? Harman told him only the feeder mechanism is upgraded!? I know that the feeder is now direct drive but that's not what I'm inquiring about. What gives?

    I'm confused, do I need secret code or special handshake to take advantage of the upgraded burnpot?
  19. OldScrap

    OldScrap New Member

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    I can guarantee JB Weld won't last! It's still mostly epoxy and only good to about 500 degrees F. A good wood fire is at least 800 degrees...
  20. lecomte38

    lecomte38 Feeling the Heat

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    Central Mass
    Update - 2 days with the roof nails in the 5 holes. Very happy with the results. Fire seems to be more vigorous on the same stove temp setting and is definitely farther up in the burn pot. The carbon build up is now on the slope with no holes instead of down in the feed tube throat.
  21. trogers

    trogers New Member

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    Does anyone know what the new burnpots cost? Also, is there a video somewhere that shows how to replace it?
  22. trogers

    trogers New Member

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    Update: I just called a Harman store in Amherst, NH and the guy said that they don't know about any new burn pot and that he couldn't give me a price because he doesn't have it listed on his parts list. Now, there is a nice clear picture of one in this thread, so we know that they exist. Curious.
  23. swalz

    swalz Feeling the Heat

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    Newark, DE
    I think Harman doesn't want you to know that this can happen and are fixing the ones that break and hoping the rest will go bad after the warranty is up. I talked to my dealer and told them that this has happen to other people and they said that it was news to them. I put 9 tons through my stove in under two years so most likely I am using more than a lot of people here in upper Delaware, I told them to get ready for other people having issues. I picked up pellets for $220 a ton with my brother's discount and the promotion from Lowes and last I checked they are going for $299 so people are not burning as much and using oil or gas. Also when they a replacing the feeder weldment if the burn pot has the holes at the bottom they are informed that it needs replaced with an updated burn pot.
  24. Jim H.

    Jim H. Feeling the Heat

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    N.E. Pa. (Northampton County)
    how about a part number from the guy who just got the updated pot. I just cleaned mine yesterday before coming across this thread so i don't know if i have 5 holes near the auger. i always wondered how good the fire was so close to the auger, especially when running in a low mode. enquiring minds want to know! LOL

    Jim
  25. goatman-68

    goatman-68 Member

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    The part# is 11000675 which is the same part# on the XXV pdf parts list. I suppose they came out with a new burn pot but are probably using up existing inventory first. That is my guess and maybe thats why dealers aren't aware of any change since the part# appears to be the same.

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