A little background so you'll know where I am at with this....thing. Bought 3 years ago by wife's grandfather used. I installed it since no one else would to supplement an oil furnace. Ductwork is tied in.
First year the firepot had a bulge so it was replaced. Within a month or so the igniter died, fin style so it too was replaced. Started and ran fine for the remainder of the season.
Second year I'd got enough phone calls at work saying it hadn't lit the previous night that I set it to manual light, touched it off and let it go back to idle when no call for heat was on. That seemed to work last year so we left it as such, the house leaks enough heat so it was probably more beneficial than costly. Grandpa was warm.
Looking at it last week the firepot was junk again so pulled and replaced. When I went to put the ignitor back in I realized that it can go in two ways which made me wonder maybe it had been incorrectly installed before I got it. Right now the igniter sits under the first row of holes closest to the auger. That is backwards to where I found it, which puts the igniter under the last two rows of holes, closest to the heat exchanger end. I turned it around to see if it made a difference as his other Harman pellet stove has it situated that way. After restarting it did ignite although it took just shy of 10 minutes to do it.
This year I figured we'd do the same thing, manual light with T-stat control, but the fire always seems to be down in the throat, very close to the auger rather than up on the firepot. If the feed control is run into test enough times I can coax the fire back up to where it should be but it always burns back down, no matter where the feed rate is set.
I've talked to the local dealer and didn't get the feeling that he'd seen this problem, nor did he know how to fix it. Just kind of threw his hands up in the air and shrugged his shoulders.
So here I sit tonight, the furnace after three hours has shutdown on a 5 blink code of no start. I'd be so happy to yank this furnace and throw a coal stoker in it's place but he likes those pellets so I will continue to try and help.
Also have replaced the exhaust probe sometime within the last year.
Seems like all of the combustion air is coming through the auger moreso than the firepot. Should there be any air coming through the auger area?
Will answer any questions that you folks can come up with to help and I really appreciate your time and thoughts. If this was Axeman-Anderson coal boiler I'd have it up and running several times over lol.
Thank you, Bob
First year the firepot had a bulge so it was replaced. Within a month or so the igniter died, fin style so it too was replaced. Started and ran fine for the remainder of the season.
Second year I'd got enough phone calls at work saying it hadn't lit the previous night that I set it to manual light, touched it off and let it go back to idle when no call for heat was on. That seemed to work last year so we left it as such, the house leaks enough heat so it was probably more beneficial than costly. Grandpa was warm.
Looking at it last week the firepot was junk again so pulled and replaced. When I went to put the ignitor back in I realized that it can go in two ways which made me wonder maybe it had been incorrectly installed before I got it. Right now the igniter sits under the first row of holes closest to the auger. That is backwards to where I found it, which puts the igniter under the last two rows of holes, closest to the heat exchanger end. I turned it around to see if it made a difference as his other Harman pellet stove has it situated that way. After restarting it did ignite although it took just shy of 10 minutes to do it.
This year I figured we'd do the same thing, manual light with T-stat control, but the fire always seems to be down in the throat, very close to the auger rather than up on the firepot. If the feed control is run into test enough times I can coax the fire back up to where it should be but it always burns back down, no matter where the feed rate is set.
I've talked to the local dealer and didn't get the feeling that he'd seen this problem, nor did he know how to fix it. Just kind of threw his hands up in the air and shrugged his shoulders.
So here I sit tonight, the furnace after three hours has shutdown on a 5 blink code of no start. I'd be so happy to yank this furnace and throw a coal stoker in it's place but he likes those pellets so I will continue to try and help.
Also have replaced the exhaust probe sometime within the last year.
Seems like all of the combustion air is coming through the auger moreso than the firepot. Should there be any air coming through the auger area?
Will answer any questions that you folks can come up with to help and I really appreciate your time and thoughts. If this was Axeman-Anderson coal boiler I'd have it up and running several times over lol.
Thank you, Bob
![[Hearth.com] Harman PF100 won't autostart, burns low on firepot](/talk/data/attachments/120/120244-134ca57b10fc9c0f828b255bd2fe44e6.jpg?hash=Yue9vryUxI)
![[Hearth.com] Harman PF100 won't autostart, burns low on firepot](/talk/data/attachments/120/120246-02036ada4656d94835aee330ba4c6ba0.jpg?hash=IIhslCaGGM)
![[Hearth.com] Harman PF100 won't autostart, burns low on firepot](/talk/data/attachments/120/120247-9f69587868a7b6b37580d9b419e23596.jpg?hash=_VRx-rTVJi)
