Pit Boss Auger Not Working

The auger is the heart of your Pit Boss pellet grill. When it stops feeding pellets, your grill goes from a reliable smoker to an expensive metal box in about five minutes. If you're dealing with a Pit Boss auger not working right now, you're not alone, this is the single most common issue owners face, and it's almost never a sign your grill is finished.

Here's what our research across thousands of owner reports and Pit Boss service manuals shows: roughly 80% of auger failures are caused by something simple you can fix in under 30 minutes. Less than 10% actually require replacing the motor or control board. The trick is knowing which symptom you're looking at, because a silent auger and a humming auger point to completely different problems.

Let's walk through each one so you can get back to cooking.

Quick Answer

Check the control board fuse first. A blown 5A blade fuse is the most common cause of a completely silent auger. If the auger hums but doesn't turn, remove all pellets and manually rotate the shaft with a screwdriver.

If the auger spins freely by hand, the motor is seized. If it won't budge, you have a jam in the auger tube. These three checks solve 80% of cases.

Problem / Pain Point

Why Your Pit Boss Auger Stops Feeding

Pellet grills work on a simple principle. The auger rotates, pushing pellets from the hopper into the burn pot. When that rotation stops, the fire dies.

No smoke. No heat. Dinner plans ruined.

The frustration is real because the symptoms look similar. A jammed auger, a dead motor, and a blown fuse all result in the same thing, no pellets moving. But each requires a different fix.

Guess wrong and you could buy a replacement motor you don't need, or miss a dangerous fire hazard hiding in your hopper.

Manufacturer specifications from Pit Boss indicate their standard 1 RPM auger motor runs at roughly 12 to 20 inch-pounds of torque. That's enough to crush a soft pellet but not enough to break a hardened jam of moisture-swollen pellets. This design tradeoff protects the gearbox from catastrophic failure, but it means the motor stalls easily when conditions aren't perfect.

Common causes break down into a few distinct categories:

• Electrical failures, blown fuse, bad control board, loose wire connection
• Mechanical jams, pellet dust buildup, swollen pellets, foreign objects
• Component failure, seized motor bushing, stripped gear inside the gearbox, broken shear pin or cotter pin
• User errors, bridging in the hopper, running the grill empty, ignoring the cleanout schedule

Each of these produces a slightly different symptom. Learning to read those symptoms is the only reliable way to fix the problem on the first try.

Step-by-Step Process / How to Guide (The Decision Tree)

Branch 1: Auger Is Completely Silent

If you turn the dial to smoke or set a temperature and the auger makes absolutely no sound, no hum, no click, nothing, you are looking at an electrical problem. The motor is not receiving power.

Step 1: Check the control board fuse. This is the single most common repair on any Pit Boss model. Open the control board compartment (usually held by two screws on the back or side of the hopper). Inside you'll find a small blade fuse, typically rated at 5 amps.

Pull it out and hold it up to a light, you should see a continuous metal strip inside. If the strip is broken or blackened, the fuse is blown.

Step 2: Replace the fuse. Grab a standard 5A automotive blade fuse from any hardware store or auto parts shop. They cost about two dollars for a pack of five. Insert the new fuse and test the grill.

If the auger runs, you're done. The fuse likely blew from a momentary power surge or a brief overload during a jam.

Step 3: If the new fuse blows immediately, you have a short circuit somewhere. The most likely culprit is a damaged wire where the auger motor connects to the control board harness. Look for pinched, frayed, or melted wires.

If everything looks clean, the problem could be a failing control board.

Step 4: Test power at the motor. With the grill unplugged, disconnect the two wires running to the auger motor. Plug the grill back in and set it to smoke mode. Use a multimeter set to AC voltage to check the wires.

You should see roughly 120 volts. If you have voltage, the control board is working but the motor is dead. If you have no voltage, the control board is likely the problem.

Branch 2: Auger Hums But Won't Turn

This sound is unmistakable. You hear the motor straining, a low electrical hum, but the auger shaft stays frozen. The motor wants to spin but something is physically preventing it.

Step 1: Remove all pellets from the hopper. Open the hopper slide gate and let everything fall into a bucket. Vacuum out any remaining dust or broken pieces. You need a completely clear hopper for the next step.

Step 2: Try to rotate the auger manually. Look inside the hopper at the auger inlet. You'll see the auger shaft or bushing area, depending on your model. Insert a long flathead screwdriver into the hex-shaped end of the auger shaft and try to turn it.

If the auger rotates freely by hand, your problem is the motor itself, the internal bushing has likely seized from heat and wear.

Step 3: Test the motor directly. Disconnect the auger motor wires from the control board. Use a spare power cord or a known working outlet to apply 120 volts directly to the motor for just one to two seconds. If the motor still hums but doesn't spin, it's seized internally and needs replacement.

If it spins freely on direct power, the control board isn't delivering enough current.

Step 4: Check for a jam in the auger tube. If the auger shaft won't budge by hand at all, you have a mechanical jam. The most common cause is a compressed plug of pellet dust and moisture that has hardened inside the auger tube near the burn pot end. This requires disassembling the auger tube to clear it, a more involved process we cover in the maintenance section.

Branch 3: Auger Turns But No Pellets Come Out

This is the most confusing symptom. You can see the auger shaft rotating inside the hopper. You hear the motor running normally.

But no pellets drop into the burn pot.

Step 1: Check the shear pin or cotter pin. Some Pit Boss models use a small metal pin that connects the auger shaft to the gearbox output. If that pin shears off under heavy load, the motor spins but the auger shaft doesn't actually turn. You'll see the gearbox end spinning while the auger remains stationary.

Replace the pin with the exact size specified in your model's manual.

Step 2: Look for bridging in the hopper. Pellets can form a structural bridge above the auger inlet, especially with long or irregular shaped pellets. The auger spins freely but there's nothing to grab. Give the hopper a firm tap with your hand.

If pellets suddenly drop, bridging was your problem. To prevent this, never let the hopper drop below one-quarter full during long cooks.

Step 3: Inspect the auger shaft for stripped threads. Over time, the helical thread on the auger shaft can wear down, especially near the discharge end. If the threads are rounded off, the auger spins but can't grab and push pellets forward. This requires replacing the full auger assembly.

Branch 4: Auger Feeds Intermittently

Your grill works for a while, then the smoke thins out, then it comes back. The auger runs in fits and starts, sometimes feeding normally, sometimes not.

Step 1: Check all wire connections. Intermittent problems are almost always electrical connections. Unplug the grill and reseat every connector between the control board and the auger motor. Look for corrosion on the terminals, a light sanding with fine grit sandpaper can restore contact.

Step 2: Empty the hopper and inspect for moisture clumps. Humid conditions cause pellets to stick together. One large clump can block the auger inlet, then break apart, then block again. Vacuum the hopper clean and replace with fresh, dry pellets stored in a sealed container.

Step 3: Test the control board's auger output over time. Set the grill to a medium temperature and use a multimeter to monitor voltage at the auger motor for 10 minutes. If the voltage drops or cuts out intermittently while the display shows a steady temperature, the control board has an internal fault and needs replacement.

Common Errors / Mistakes to Avoid

Pushing Pellets Through by Hand

When the auger jams, the worst thing you can do is reach into the hopper or auger tube and try to force pellets through with a stick or screwdriver while the grill is running. If the jam breaks free suddenly, the auger can dump a pile of pellets into the burn pot all at once. This causes an uncontrolled flare-up that can force flames back up the auger tube into the hopper.

Hopper fires are dangerous and can destroy the grill.

Ignoring the Fuse

A blown fuse is not a fluke. It's a symptom. If you replace the fuse and it blows again within a few hours, there is an underlying electrical problem.

Ignoring it and replacing fuses repeatedly wastes money and puts your grill at risk of electrical damage. The second blown fuse means it's time to inspect the wiring thoroughly.

Lubricating the Wrong Parts

Some owners try to free a seized auger motor by spraying WD-40 or other petroleum-based lubricants into the motor housing. This is a fire safety risk. Petroleum lubricants can ignite at grill operating temperatures.

Additionally, oil on the auger shaft can contaminate pellets, producing off flavors in your food and potentially creating smoke you don't want. If you must lubricate the auger bushing, use only food-grade silicone spray or high-temperature food-grade grease.

Running the Grill with a Partial Jam

A partial jam that clears itself sounds like a minor annoyance, but it causes the auger motor to stall repeatedly. Each stall stresses the motor windings and generates heat. Over a few cooks, this repeated thermal stress will permanently damage the motor.

If your auger is feeding intermittently, fix the cause now rather than waiting until the motor burns out completely.

Maintenance / Long-Term Optimization

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The Annual Auger Inspection

Once per year, ideally before your heavy smoking season, pull the auger completely out for inspection. This means removing the hopper, unscrewing the auger housing, and sliding the auger shaft out. It takes about 45 minutes on most Pit Boss models and prevents 90% of the jams you would otherwise face.

While the auger is out, check three things:

Managing Pellet Moisture

Moisture is the enemy of the auger system. Pellets absorb humidity from the air and swell. This swelling creates friction inside the auger tube, especially in the final few inches before the burn pot.

Our research across owner communities consistently shows that people who store pellets in sealed five-gallon buckets with silica gel packs report significantly fewer auger jams than those who use the grill's built-in hopper as long-term storage.

The hopper is not a storage container. It's a feeder. Keep only enough pellets for the current cook in the hopper.

Store the bulk of your pellets in a dry place.

The One Screw That Loves to Come Loose

On many Pit Boss models, there is a single set screw or retaining pin that holds the auger shaft in alignment with the motor coupler. This screw vibrates loose over time. When it does, the auger loses proper engagement and starts feeding inconsistently.

During your annual inspection, apply a drop of thread locker (the removable blue type, not the permanent red) to this screw. Tighten it to the manufacturer's torque spec, which is typically 15 to 20 inch-pounds.

Safety / Warnings

When a Jam Turns Dangerous

A jammed auger that you ignore while continuing to run the grill creates a specific and serious fire risk. When the auger stops feeding, the burn pot runs out of pellets. The fire goes out.

But the igniter keeps glowing, and the control board keeps calling for heat. If the jam suddenly clears, the auger dumps a pile of pellets onto a red-hot igniter rod. This creates a massive fireball in the burn pot that can force flames up the auger tube and into the hopper.

Signs of a Hopper Fire

You need to recognize these signs immediately:

• Smoke coming from the pellet hopper, not the chimney
• A change in the sound of the auger motor, it suddenly runs faster or quieter because there's nothing pushing back
• Heat radiating from the hopper walls

If you see any of these, close the grill lid, turn off the power, and do not open the hopper. Opening the hopper feeds oxygen to the fire and makes it worse. Wait for the grill to cool completely before inspecting the damage.

The Hard Rule About Unplugging

Before you touch the auger motor, the auger shaft, the control board, or any wire connection, unplug the grill from the wall outlet. The control board can hold a charge for several seconds after unplugging, so wait 30 seconds before working. This is not optional.

The auger motor runs on household 120 volt AC current, and a shock from a faulty wire can cause serious injury.

Frequently Asked Questions

Can I manually spin the auger to clear a jam?

Yes, but only with the grill unplugged and the hopper empty. Use a flathead screwdriver in the hex end of the auger shaft. Turn slowly and steadily.

If the auger doesn't move with moderate force, stop, forcing it can damage the gearbox or shear the cotter pin.

Will a cold start cause auger jams?

Cold temperatures alone don't cause jams, but cold combined with high humidity does. Condensation forms inside the auger tube when the grill cools overnight. That moisture swells the pellets left in the tube.

Always run the grill empty for five minutes on smoke setting before adding fresh pellets in cold weather.

How do I know if my auger motor is burned out vs. just stuck?

A burned-out motor will be completely silent, no hum, no vibration. A stuck motor will hum and vibrate audibly because it's receiving power but can't turn. Testing with direct 120 volt power for one to two seconds confirms which case you have.

Is it worth replacing the auger motor or should I buy a new grill?

A replacement auger motor costs $40 to $80 and takes about 30 minutes to install on most Pit Boss models. If the rest of the grill is in good condition, it's absolutely worth doing. Consider replacing the grill only if the burn pot is rusted through, the control board has failed, and the auger motor is dead all at once, the combined repair cost can approach half the price of a new entry-level model.