Harman Stove Defect

lecomte38 said:

I just put 5 roofing nails in the holes to see the difference. The fire is definitely further up in the burn pot. I can even see unburned pellets getting pushed out of the feed tube. This could be a good fix and probibly the reason my auger end is bent from overheating with the fire in the feed tube. I'll run it for a few days before making a permanent fix.

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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.....

Bigjim13 said:

So if the pellets are burning in the auger tube does that affect heat output? What affects would it have on the performance of the stove?

I wonder if I should call my dealer about this and see if I can get the updated burnpot...

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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.

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.

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!

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!

Do you people with the pre 07 stoves with the 5 holes also have 2 holes up on the sides of the pot?

lecomte38 said:

I wonder if JB Weld would last? It would be easy to try.

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

krooser said:

lecomte38 said:

I wonder if JB Weld would last? It would be easy to try.

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

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Exactly weld it grind it smooth and your done.

lecomte38 said:

Do you people with the pre 07 stoves with the 5 holes also have 2 holes up on the sides of the pot?

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

mnkywrnch said:

krooser said:

lecomte38 said:

I wonder if JB Weld would last? It would be easy to try.

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

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Exactly weld it grind it smooth and your done.

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Am I correct in assuming that you have to remove the burnpot to weld it?

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.

ducker said:

goatman-68 said:

Called my dealer today and explained the burn pot deal, and that mine is burning pellets in the tube. They asked if I had a hole in the tube, I said no and I don't want one....... They said that I can get a new updated burn pot. The burn pot and labor is covered under warranty, all I have to pay is a 75.00 trip charge, or I can do it myself for free. I opted for the trip charge and they are coming out Thursday to swap it out. What a great dealer.......................

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lame that you get charged for the trip to fix a problem you didn't create.

Let us know if they modify your burn pot, or replace it. I believe they modified mine, not replaced it.

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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.

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.

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

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

maglite67 said:

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

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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........

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.

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?

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...

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.

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

NH Pellet Head said:

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

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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.

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.

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

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.