PF100 pellet furnace question

Yukon Jack

New Member
Oct 27, 2019
5
Central New York
Should my furnace go on and off within the thermostat settings in automatic setting? I hoped it would go into a low burn rather than go off. I clean the burn pot constantly but occasionally it takes to long for the igniter to start a burn and pellet auger restarts then gets an error to clean burn pot. Seems the igniter isn't heating enough, tried a new igniter with same results. The furnace is completely clean. Any advice is appreciated.
 

Yukon Jack

New Member
Oct 27, 2019
5
Central New York
Yes it's cleaned and undamaged. I assembled and installed it myself in 2009. It has worked fine all these years. With the weather changes this year, warm then cold the furnace heats to the thermostat settings then shuts down. On and off like this causes the burn pot to fill with ash and fine eventually causing the igniter not to heat the new pellets enough to start. There is a manual way to keep it burning at a low burn but was wondering if anyone else is experiencing the same thing. I just have to clean the burn pot more often than I have in the past 10 years, Just looking for thoughts from other Harman PF 100 Pellet Pro Furnace owners. Thank you for your reply.
 

Yukon Jack

New Member
Oct 27, 2019
5
Central New York
ESP Clean? Undamaged?
Daksy... Maybe the ESP is my problem although the furnace has been working normal. I'll wait for a warm day with the furnace off and pull it out of the back. There are no connectors visible on the outside only 2 white wires to the probe extending about 2 in. out of a metal BX cable which is buried in the interior of the furnace. Do they have a history of going bad or acting erratic? My stove is exactly 10 yrs old. I will let you know how I make out. Thanks again.
 
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Yukon Jack

New Member
Oct 27, 2019
5
Central New York
ESP Clean? Undamaged?
Dansky.. You were spot on with the ESP, It was damaged so I replace it. Thank you. I have another erratic problem with the igniter not always heating enough even with a just cleaned burn pot to start a flame. Seeing the furnace is 10 years old I'm suspecting the igniter is the culprit. I purchased a new one about 5 years ago for a spare but before I change it, Can you think of anything else? At the end of the season last year I replaced the door gasket and a clogged pressure switch. I really heek it clean inside and out including the chimney. I also vacuum all the fine out of the bottom of the burn pot auger slide area often. Any suggesting for this old man. I see we are both NY State neighbors... any suggestion on the igniter erratic problem would be appreciated.
 

DAKSY

Patriot Guard Rider Moderator
Staff member
Have you "punched" out all the holes in the burn pot?
I use a piece of 12 gauge wire bent into an "L"...
Just don't damage the igniter where the holes are close to it.
If you want, you can loosen the screws & pull it out of the way...
Might as well practice removal...
 
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Yukon Jack

New Member
Oct 27, 2019
5
Central New York
Have you "punched" out all the holes in the burn pot?
I use a piece of 12 gauge wire bent into an "L"...
Just don't damage the igniter where the holes are close to it.
If you want, you can loosen the screws & pull it out of the way...
Might as well practice removal...
Excellent... I have cleaned them in the past but with a smaller ID wire, I have all the other gauges on hand and will use the 12 gauge. Furnace has be running constantly because of the single/teen night numbers. Temp is going up into low 30's tomorrow and I'll shut it down and do as you said and keep you informed. Thanks again my friend.
 
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