Harman PB105 Owners
- Thread starter Chris04626
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BINGO...Thinking back this is exactly what has been my problem. Heck ...I'm so cheap , the sawdust I clean out of the auger...I pour them back in the hopper. If I paid for it and it came in the bag, it goes in the hopper. guess I'll have to re-evaluate that practice
these pellets are pretty short, right now i turned it down the feed down to 2.5 we will see what happens
ok fire is going so couldn't get a good look but it appears theres alot of partial burned pellets with some unburned mixed in the burnpot
It appears im building up alot of Creosote on the back wall, and the heat exchanger tubes, also there is a little wire screen over my vent outside and that was almost clogged up/
Should i take that wire off? Thoughts on whats causing the build up? How do i get it off ive scrapped like heck and dont really seem to be touching it.
Should i take that wire off? Thoughts on whats causing the build up? How do i get it off ive scrapped like heck and dont really seem to be touching it.
Not an installer myself, so I wouldn't know about that wire screen. I do know that I don't have one and a plugged exhaust is bad. I don't know what purpose that screen is supposed to serve, other than to plug up, restrict your air flow, and make the stove run poorly. Maybe there's a good reason for it. All I know is I don't have it.
Screen is to keep critters from crawling in (non-burning time). My screens openings are not that fine, so it has never ever come close to plugging up.
I would think if yours is plugged your vent cleanings have been neglected or have a major issue with the boiler.
I would think if yours is plugged your vent cleanings have been neglected or have a major issue with the boiler.
This isnt mine, but the end piece is what i have
(broken link removed to http://i15.photobucket.com/albums/a385/krooser/100_0617.jpg)
except mine is angled downward a bit
My install is only a month old
(broken link removed to http://i15.photobucket.com/albums/a385/krooser/100_0617.jpg)
except mine is angled downward a bit
My install is only a month old
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called my installer he said same thign dealer said make sure the holes are not plugged, i shut it off took a nail to each hole again and fired it back up, we will see if this brings anything, i have the feed set at 2 now
Creosote would be caused by incomplete combustion either from a leaky gasket or poor combustion blower/venting flow (low draft). I believe a member here had creosote problems on his PB105 a year or so ago and it was a bad gasket. Have you or your installer checked the draft as specified in the manual? I believe the specs are no more than .85 inches WC on high speed and .25-.35 inches WC on low speed. You test this by turning the feed knob to test and hooking up a magnehelic or manometer to the bolt hole above the glass.
Here is the link: https://www.hearth.com/talk/threads/pb105-creosote-problem.57643/
Here is the link: https://www.hearth.com/talk/threads/pb105-creosote-problem.57643/
My guess is that "part" of you issue is that you have insufficient draft. You have a pellet boiler not a stove, and should have a significant vertical rise at termination.
mine is up 5 feet , then a "t" , then 4 feet straight out to a down pointing screened end (one inch squares) works great
I think its quite possible that the issue that your having is directly with not enough air for good combustion. If the screen on the vent is plugging up after only a month use, it certainly wants me to believe this is where the isue is. Have you removed the cover under the hopper and made sure that the flapper in the intake air is not sticking patially closed or maybe an obstruction? Have you removed the combustion air motor to look for an obstruction? When the Harman reps inspected my boiler as to why I was having a burnpot bubble issue, they adjusted the draft so as the motor runs at full speed as long as fire is in the burnpot. I said," hey, that was adjusted to the spec in the owners manual," the response from them was,"we know but the burnpot needs more air passing through it."
i just talked with the dealer and he again mentioned cleaning the esp and also told me to check the combustion fan. Hopefully i can get it off and back on with no issues
He said that ...
more then likely a dirty esp will trip a code (status lights blinking) He also said unburned pellets in ash pan is normal too...NOT
told you???
Chris..new boiler = warrantee Apply pressure. also post your dealers name here.
Hi Chris, I'm following this tread since a while and I also did see your tread in the boiler room.
I second IceGuy's opinion.
I don't know the law in Maine, but I would write a certified letter to your installer, telling him what is not working properly and giving him x-number of days to solve it.
If he does not step up you take it to the next level, in Mass that would be SCC, up to $7,000.
I assume you are probably for around or more then $10,000 into this pellet boiler endeavor.
If you pay that much you may expect something that does the job for you.
Don't delay this any longer.
Just my 2 cents.
Good luck!
any tips to clean the combustion blower, i have that off and its covered, the blades in behind the blades on the play in stick cresotle i have been scrubbing but i dunno if it will ever come clean. Thoughts on how to clean it?
first thing I would do is take of the impeller (allen wrench needed) depending on how thick, I would use anything from gasoline to a propane torch..(not at same time
).creosote..NOT my experience. mine has always cleaned nicely with a wire brush (once removed)- Status
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