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6500 Pellet/Corn Furnace

Category: 6500 Pellet/Corn Furnace
  1. My model 6500 furnace Keeps going out and there is an E-2 code. What is wrong?
  2. My furnace keeps going out,and corn piles up and turns black. Why?
  3. The dash in my range range is flashing. Is this normal?
  4. What does it mean when the auger delay button flashes?
  5. My 6500 has a gap in the gasket around the glass, is this normal?
  6. I have the model 6500 pellet furnace, the exhaust fan speeds up and slows down. Do I have a problem?
  7. Can I vent my pellet/multifuel furnace into and existing chimney?
  8. I have a model 6500 and I can’t get much heat out of it. I have a filter box but NO cold air return. What is the problem?




1.
My model 6500 furnace keeps going out there is an E-2 error code. What is wrong?

The E-2 means "Out of fuel”. There are two reasons for this error code:1) the unit is out of fuel, 2) there is a back draft of air or blockage in the clean out T. On both of these errors, the vacuum switch will drop out and the board will cut the auger off and tell the combustion blower to speed up to high so it can compensate for the vacuum loss. The fuel will then burn up fast, the auger will still not feed, the unit will cool down, and the E-2 error code shows up.
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2. My furnace keeps going out, and my corn piles up and turns black. Why?

This is caused by incomplete combustion, due to high moisture in the corn and the feed rate set too high at the same time. To stop this slow down the feed rate so the fuel will burn completely. If it continues, contact our technical support at 1-800-750-2723.
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3. The dash in my heat range is flashing. Is this normal?

Yes, this tells us the furnace is in normal run mode, but the temperature is rising from the current heat range setting to meet the target heat range. Once the target heat is met, the dash will stop flashing.
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4. What does it mean when the auger delay button flashes?

This indicates that the furnace is in normal operation but the hopper lid is open. If the hopper lid is closed then please contact USSC at 800-750-2723 or email customerservice@usstove.com.
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5. My 6500 has a gap in the gasket around the glass, is this normal?

Yes, this acts as an air wash system. It allows air to blow across the front of the glass and keep it clean.
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6. I have the model 6500 pellet furnace, the exhaust fan speeds up and slows down. Do I have a problem?

No, the 6500 exhaust fan is designed to have a variable speed that makes it go up and down.
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7. Can I vent my pellet/multifuel furnace into and existing chimney?

No, unlike wood stoves, which operate exclusively on the principle of chimney draft, a pellet stove must use a specially sealed exhaust pipe to prevent exhaust gases from escaping into the living space. This is needed because of the air pressure produced by the combustion blower. Pellet stoves require a certified double walled venting, type P or PL that is 3 or 4 inches in diameter with a stainless steel interior and a galvanized exterior. Because pellet stoves have a forced exhaust, at least a 3 foot vertical rise should be included in the installation to induce some natural draft and prevent leakage in the case of a power outage. If an existing chimney is available, we recommend the use of a correctly sized exhaust, that is type P or PL, made of a stainless steel liner the length of the chimney for proper drafting.
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8. I have a model 6500 and I can’t get much heat out of it. I have a filter box but NO cold air return. What is the problem?

This unit must be installed with a cold air return. This will help pull the air back from the home so the hot air can be blown into the home. If you do not install this, your home will build-up back pressure and will not allow the furnace to heat properly. You must also have a back draft damper in the main trunk line above the existing furnace. This will keep the heated air from blowing back down through your existing furnace.
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