Pellet Stove Problem Questions – Answered by a Professional Stove Technician

I Keep Getting Clinkers in My Burn Pot. What is Causing This?

PelletStoveClinkerClinkers, which look like clumps of ash, can cause airflow issues from blockage. Clinkers are formed by burned or partially burned pellets that melt together into a clump.

There are two likely reasons for clinkers – a poor air mixture which due to a neglected or dity unit, or incorrect air adjustments.

My Pellet Stove Won’t Ignite.

There are a variety of reasons for your pellet stove failing to light.  The most common reasons – bad air flow, a dirty unit, bad igniter, blown fuse, bad gasket around igniter – could be easily avoided with regular maintenance and professional inspections.

The Heat Isn’t As Hot As It Should Be.

Not feeling the heat you were expecting can be frustrating. The most likely culprits for this issue are – a dirty unit blocking proper airflow, a neglected/dirty heat exchanger, and incorrect blower settings. If none of these are the cause, and you purchased your fuel from, give our Quality Control Manager a call to walk you through what’s happening.

Pellet Stove Service and InspectionsMy Stove Keeps Shutting Down

Many newer units will flash a light on the unit, and will give a reason on the screen for the shut down. You may have noticed the common causes for most pellet stove problems by now – a dirty unit, and poor air adjustment which won’t provide enough heat to trip the sensors. Also, your pellets might not being feeding into the auger correctly, due to a worn down or broken part.

My Flame is Very Lazy

If your flame is weak, or “lazy”, you’re not getting the heat you need and your stove might shut down. This problem is most likely caused by a bad or weak blower exhaust, poor air adjustments, or an uncleaned/neglected pellet stove.


In most areas of New Hampshire and Massachusetts, Cleancare Professional Cleanings are available through our trusted, certified pellet stove technicians. Give us a call at 1-800-PELLETS, or enter your zip code on our website to see if Cleancare is available in your area.




    I have a ravelli pellet stove, it gives me an error of… smoke sensor… we cleaned the stove and replaced the sensor, but still will not stay lit, and gives the same error. How can I fix it?

  • Jazmin

    I have a ” US Stove 5660 48,000-BTUs 200-CFM 2,200-Sq.Ft. Large Automatic Bay Front Pellet Stove” and the air flow is not working right. It is not burning the pellets the way it should. We clean it eveyday & we take care of it really well. How would we go about fixing this?

  • Joe ewing

    Can the flue connect to hot water flue

  • Christina

    This is my first pellet stove. I’m getting a lot of partially burned pellets in my firepot and it’s overflowing. The trim is confusing to me. My handbook says if it’s lazy flame, or sooty turn it down. If it goes out or doesn’t ignite properly turn it up. Which is more air? What should I did to prevent overflow and waste?

  • Libby Licwov

    My pellet stove makes a vibrating sound but there is no movement in it

  • fed up with morons

    My pellet stove shows a “U” on the blower speed. We changed the igniter and it still does not start. Any suggestions as to why?

  • Jim

    My Harmon Accentra stopped and left the house smelling like hot wires and no power to the control panel. It is 11 years old. My circuit is fine for the stove.

  • Tamara Wishon

    i have an old waterford erin renaissance pellet stove i just bought.I cleaned everything started it ,it burns fine but leaves black soot on the glass right away and is blowing an exhaust smell into the house so bad i have to shut it off.i replaced the gasket ring on the burn pot but still no change.and i made sure it was seated well in the burn pot hole in the back.I’m out of ideas.

  • Donna J Allison

    pellet stove pellets do not go all the way down.. ash builds up (cleaned it) but, does it again and the flame goes out .. any ideas on what is wrong?

  • Stefanie Davis

    I vacuum my pellet stove out each time befor I use it. For the last 2 months it seems to be over feeding, it gets alot of pellets in the fire bin, then smokes out my house and some times it lites other times it doesn’t. If I open the front door and suck the smoke out and some of the pellets then it lites and works fine. What could be causing this

  • Bj chiodi

    On windy days my pellet stove has wicked backdraft I have my exhaust in a prevailing wind area will anything help this so I don’t have to shut it off on windy days

  • Phil

    Hi. On my extra flame unit I keep getting the mechanical depression sensor alarm. Even when fully loaded with pellets.

  • TISH348

    I turned my pellet stove off while it was still burning and now the pellets in the chute look like tar. Why is that

  • John Koziol

    I keep blowing the fuse on the control board. About 10 seconds after i turn the power on the fuse blows. Any ideas?

  • john

    My flames are not consistent it’s start low has expected and then it stay were it should and goes back low I this normal?

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