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Common problems and troubleshooting methods of pellet burners

Common problems and troubleshooting methods of pellet burners

abnormal situation

Possible Causes

Processing method

Flame color is orange-red

Slightly black smoke

1.Insufficient air volume

2. Feeding speed is too fast

3. Abnormal quality of pellet fuel

1. Increase the air volume until the flame color is orange for the outer flame and orange and white for the center flame.

2. Reduce the feeding speed

3. Replace pure wood pellet fuel

The furnace cannot be stacked

Full combustion

1. Feeding speed is too fast

2. The air volume is too large or too small

1. Reduce the feeding speed

2. Adjust the air intake volume

Black smoke stove

The fire color turns to dark red

1. Feeding speed is too fast

2. The grate is coked and burned incompletely.

3. Abnormal particle combustion quality

1. Reduce the feeding speed

2. Stop the furnace to clean up the coking

3. Replace pure wood pellet combustion

The grate (chamber) coking speed is too fast

1. Abnormal quality of pellet fuel

2. Uneven air distribution at the bottom

1. Replace with good quality biomass pellets

2. Clean the grate (chamber) from coking

The reduction motor is running normally

But the feeding system does not feed the material

1. The hopper is empty

2. Hopper pellet material bridge

1.Add ingredients

2. Manually turn the hopper fuel

Feeder blade stuck

1. There are foreign objects in the hopper pellets.

1. Open the discharge port of the silo and clean out foreign matter

The grate is burnt out and deformed on one side or locally

1. Uneven fuel distribution

2. Uneven primary air distribution

1. Adjust the air volume

2. Check whether the grate is coked and clean it in time

During operation, the fuel hopper comes out

black smoke

1. The particles are burned out, causing the smoke to flow backwards.

2. The burner is severely blocked due to coking, causing the smoke to flow backwards.

3. Temper burning of particles in feeding tube

1. Re-add pellets for combustion, and cannot be used when the box is empty.

2. Remove the coking on the furnace nozzle before turning it on.

3. First stop the machine and cut off the material for cleaning, and then restart the machine.

After multiple ignitions, the pellet material cannot be ignited and burned normally.

1. Check whether there is oil in the fuel tank and whether the oil outlet valve is open

2. Is the fuel injection nozzle clogged?

1. Refill oil and open the oil valve

2. Clean the fuel injector

3. Open the furnace door and ignite it with an open flame