Hi, Has this ever happened on your stove?
I have a Harman P68 that I purchased in June 2014. Last night, it almost smothered the startup flame and was about to start pushing unburned pellets over the edge of the burn pot, before I intervened. When I got home, I wanted to heat-up the house quickly. I set the dial to constant burn #7. (The feed rate limit was on #4 where I always leave it.)
I saw the flames of the fire start, but the fire did not grow to full size, across the full width of the burn pot. The fire was not putting out enough heat; hence, the feed auger continued to push pellets. It was as if the control system did not detect enough heat (big enough fire); hence, the control system thought that the fire needed more pellets and kept pushing pellets.
What happened next is the fire got partially smothered. Unburned pellets were about to be pushed over the edge of the burn pot. I decided it was time that I do something. I turned the feed rate limit down to 1/2. I set the dial to OFF. Luckily the feed auger stopped. It then took about 25 minutes for the fire to build-up to a normal size flame extending across the full width of the burn pot and about 1/2 down into the burn pot. It took this long
for the fire to grow and burn-up the large accumulation of pellets in the burn pot.
After about each 20 minute period, I gradually turned-up the constant burn dial about about two numbers. It took some 40 minutes or so to work up to constant burn #7.
Questions
1. Has this over happened to you?
2. Is the best way to reach constant burn #7 is to achieve the first fire on a constant burn #1 setting, then each 15 minutes move the dial up two more numbers?
3. I wonder how this would have turned-out had I not been nearby watching the stove start-up?
Any comments, thoughts, or advice would be greatly appreciated.
Orson
New Hampshire
I have a Harman P68 that I purchased in June 2014. Last night, it almost smothered the startup flame and was about to start pushing unburned pellets over the edge of the burn pot, before I intervened. When I got home, I wanted to heat-up the house quickly. I set the dial to constant burn #7. (The feed rate limit was on #4 where I always leave it.)
I saw the flames of the fire start, but the fire did not grow to full size, across the full width of the burn pot. The fire was not putting out enough heat; hence, the feed auger continued to push pellets. It was as if the control system did not detect enough heat (big enough fire); hence, the control system thought that the fire needed more pellets and kept pushing pellets.
What happened next is the fire got partially smothered. Unburned pellets were about to be pushed over the edge of the burn pot. I decided it was time that I do something. I turned the feed rate limit down to 1/2. I set the dial to OFF. Luckily the feed auger stopped. It then took about 25 minutes for the fire to build-up to a normal size flame extending across the full width of the burn pot and about 1/2 down into the burn pot. It took this long
for the fire to grow and burn-up the large accumulation of pellets in the burn pot.
After about each 20 minute period, I gradually turned-up the constant burn dial about about two numbers. It took some 40 minutes or so to work up to constant burn #7.
Questions
1. Has this over happened to you?
2. Is the best way to reach constant burn #7 is to achieve the first fire on a constant burn #1 setting, then each 15 minutes move the dial up two more numbers?
3. I wonder how this would have turned-out had I not been nearby watching the stove start-up?
Any comments, thoughts, or advice would be greatly appreciated.
Orson
New Hampshire