Harman P61 pellet feed problem

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KEM

New Member
Jan 6, 2025
3
New Hampshire
I have a Harman P61 that I bought new in 1997. It has been running fine up until this year. I have replaced the control panel, the ESP and the distribution blower over its lifetime. I thoroughly clean the stove at least twice a season. I have experimented with different pellets i.e. LG, Matra, La Crete and New England. The problem I am having is that I cannot get much heat out of the stove this season. Running on stove temperature at the max with the temperature and the feed also set to the max, most of the flame stays in the burn pot with some flames reaching up 4 or 5 inches once in a while. The light indicating the feed motor stays on most of the time. If I fill the burn pot with pellets by hand the flames fill the stove and reach to the top. I think this would tell me that the combustion blower is working fine. I think my problem is the feed motor. Anyone else had this problem?
 
Welcome to the forum
Could you send us a photo of the flames?
Is the stove clean from the air intake to exhaust termination?
I believe that the stove has a combustion air flap is it free to swing?
 
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Reactions: Ssyko and Washed-Up
How does it operate in room temp mode?
 
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Welcome to the forum
Could you send us a photo of the flames?
Is the stove clean from the air intake to exhaust termination?
I believe that the stove has a combustion air flap is it free to swing?
The stove has been cleaned recently from intake to exhaust.
The flapper swings freely.
[Hearth.com] Harman P61 pellet feed problem
 
Looks like a good fire to me
 
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Reactions: ericofmaine
Air flow, intake? Pot holes scraped? Underneath the firepot clean? Looks like it’s not getting enough air IMHO
 
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This may sound stupid, and may not be the issue, but I had this happen once (and no, it didn't throw an error code): check to make sure your room probe is well seated into the stove. If it is not seated, then the stove seems to get confused and not know what to do, so it basically just does a maintenance burn regardless of settings.