In need of some help here fellas. I’m having issues with my 6039 stove taking several hours to shut down. I replaced the auger motor a while back and the problem seems to have started after that. What I really would like to know is, does your auger stop rotating the instant the controller cuts power to it, or does it “coast” to a stop over a couple of seconds or more ? Mine coasts to a stop over several seconds and I think that’s why it stays above the 110°. It’s dumping too many pellets.
USSC 6039 auger motor question
- Thread starter Proudadx2.
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ARC
Minister of Fire
When you push off button stove goes into shut down mode, auger will still bump pellets into pot every few seconds to prevent burn back up the auger tube. Exhaust blower and room blower will continue to run until firebox reaches 100 degrees or so, both blowers will shut off and the auger will bump one more time there should be no fire or embers just unburnt pellets in fire pot by this time. Normal shut down time is around 45 minutes after you push off button.
Are you sure you replace auger with correct RPM should be around 4.1 RPM but will work with anything close 4.0 to 4.6?
Which control board do you have the old ABC or 4 Button board?
If 4 button try pushing off wait for stove to respond then push off a second time.
Are you sure you replace auger with correct RPM should be around 4.1 RPM but will work with anything close 4.0 to 4.6?
Which control board do you have the old ABC or 4 Button board?
If 4 button try pushing off wait for stove to respond then push off a second time.
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ARC
Minister of Fire
Not sure if it will help or not but worth a try, From the Manual:
Turning the stove off
Pressing the OFF button will cause the stove to enter a shutdown mode. If the stove has reached operating temperature, the OFF Indicator will blink until the shutdown procedure succeeds in lowering the stove temperature. The Room Fan will stay
on to cool the stove, and the Exhaust Fan will stay on to remove smoke and heat from the combustion chamber. The Agitator will stop. The Auger will bump the fuel out of the auger every few seconds to prevent the fuel in the auger from burning. Once the temperature of the burn chamber falls below about 100 degrees F and the pressure switch detects that the door
is closed, the fans will stop and the Auger will run for a few seconds to purge the auger system of any burned fuel. At this point, the OFF Indicator will go out and the stove will turn completely off. If during burning, the stove has reached at least 120 degrees F, the shutdown procedure will also include a 15 minute shutdown timer that will keep the stove in the shutdown state for at least 15 minutes regardless of whether it is cool or pressure is detected. The 15 minute timer can be turned off by pressing the off button during shutdown. This will cause the system to exit shutdown and return to the “OFF” mode as soon as the door is closed and the stove is cool.
ARC
Minister of Fire
Only other thing I can think of is your low limit switch is faulty. When switches go bad they do weird things.
What heat setting are you at when you push off button, I try to let stove ramp down to HR 2 before I press off, seems to be a shorter shutdown then if I press off when on HR 7. Which makes sense as stove will not be as hot.
What heat setting are you at when you push off button, I try to let stove ramp down to HR 2 before I press off, seems to be a shorter shutdown then if I press off when on HR 7. Which makes sense as stove will not be as hot.
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ARC
Minister of Fire
During shutdown the auger bumps at .5 pounds so even less then HR 1, 1.5 pounds. So it is a quick bump but it does sound like it is "coasting" goes wrrr, lol.
Hahaha ! Interesting. I appreciate the help. I’ll give it shot once the cool weather comes back. Is your default setting for HR-1 at 1.5 pounds ? My control board default is 2.0.
ARC
Minister of Fire
You are correct 2 and 5 are the defaults. Mine is set at 1.5 this time of year HR 1 @ 1.5 keeps the house 74 degrees until it gets colder then I will move it back to 2.0. 25 degrees past two nights, now have a 4 day 70 degree stretch so stove is off.
Problem solved ! The auger motor in question was bad in the sense that, the auger took so long to come to a stop, it delivered a lot of extra pellets. I overcame the issue by changing the feed rate however, when the stove was placed into shutdown mode there was no controlling the feed rate. It just did its pre-programmed thing, and the stove would never shut off. Basically I had the equivalent of a 6 RPM motor, when it actually calls for a 4 RPM motor. With the new motor installed, the stove shutdown in about 30 minutes.
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