Updated: July 2025

Is your pellet grill continuously feeding pellets even when it shouldn’t? This frustrating issue affects thousands of pellet grill owners, but the good news is it’s usually fixable with simple troubleshooting steps. Let’s diagnose why your pellet grill won’t stop feeding pellets and get you back to perfect grilling!

Pellet grills have revolutionized outdoor cooking by combining the convenience of gas grills with the rich, smoky flavor of wood-fired cooking. Unlike traditional charcoal grills that require constant attention and manual fuel management, pellet grills automatically feed compressed wood pellets to maintain your desired temperature.

However, when this automated system malfunctions and keeps feeding pellets continuously, it can waste fuel, create dangerous flare-ups, and ruin your cooking session. Understanding the root causes and solutions will save you time, money, and frustration.

Understanding Your Pellet Grill’s Feeding System

Before diving into troubleshooting, it’s essential to understand how pellet grills work. The system consists of several key components working together:

The auger – a motorized screw that transports pellets from the hopper to the fire pot

The control board – the “brain” that regulates when and how long the auger runs

Temperature probes – sensors that monitor grill temperature and send feedback to the control board

The combustion fan – creates airflow to maintain proper burning conditions

When working correctly, the control board receives temperature readings and cycles the auger on and off to maintain your set temperature. When this system fails, you get continuous pellet feeding.

Top 6 Reasons Your Pellet Grill Keeps Feeding Pellets

1. Faulty Temperature Probe

The most common cause of overfeeding is a malfunctioning temperature probe. If the probe gives false readings (showing temperatures lower than actual), the control board thinks it needs more fuel and keeps the auger running continuously.

Solution: Test your probe with a separate thermometer. If readings differ by more than 25°F, replace the probe.

2. Control Board Malfunction

The control board can develop programming glitches or electrical failures that cause it to lose proper auger control. This often happens after power surges or with age.

Solution: Try resetting the control board by unplugging for 10 minutes. If the problem persists, the board likely needs replacement.

3. Blocked or Dirty Combustion Fan

A dirty combustion fan can’t provide adequate airflow, resulting in poor combustion and lower temperatures. The control board compensates by feeding more pellets, creating a dangerous cycle.

Solution: Clean the fan and check for obstructions. Remove any accumulated ash or debris blocking airflow.

4. Damaged Wiring

Loose or damaged wiring connections can cause intermittent signals between components. The auger might receive constant “on” signals due to faulty connections.

Solution: Inspect all wiring connections, especially around the auger motor and control board. Look for burned, loose, or corroded connections.

5. Auger Motor Issues

Sometimes the auger motor itself develops problems, running continuously instead of cycling on and off as programmed.

Solution: If the motor runs constantly even when disconnected from the control board, it needs replacement.

6. Poor Quality or Wet Pellets

Wet, damaged, or poor-quality pellets burn inefficiently, causing temperature drops that trigger continuous pellet feeding. Old pellets can also create excessive ash that clogs the system.

Solution: Always use dry, high-quality pellets stored in a moisture-free environment. Replace old pellets and clean out the fire pot regularly.

Step-by-Step Troubleshooting Guide

Step 1: Safety First

Always disconnect power before beginning any troubleshooting. Allow the grill to cool completely if it’s been running.

Step 2: Check the Basics

– Ensure the hopper isn’t overfilled (should be 80% full maximum)

– Verify pellets are dry and high-quality

– Clean out any ash from the fire pot

– Check that the grill grates and drip tray are properly positioned

Step 3: Test the Temperature Probe

Place an oven thermometer next to the grill’s temperature probe. Heat the grill to 300°F and compare readings. Replace the probe if readings differ significantly.

Step 4: Inspect the Control Board

Look for any visible damage, burned components, or loose connections. Try a factory reset according to your manufacturer’s instructions.

Step 5: Clean the Combustion System

Remove and clean the combustion fan, fire pot, and all air passages. Ensure nothing blocks the airflow path.

Step 6: Check Electrical Connections

Inspect all wiring for damage, corrosion, or loose connections. Pay special attention to connections at the auger motor and control board.

Advanced Troubleshooting Tips

Auger Timing Test

During normal operation, the auger should cycle on and off. Time how long it runs versus how long it stays off. Continuous running indicates a control problem.

Fuse Check

Many pellet grills have internal fuses that can blow and cause erratic operation. Check your manual for fuse locations and test them with a multimeter.

Calibration Issues

Some grills allow temperature calibration adjustments. If your probe is reading incorrectly but isn’t faulty, calibration might solve the issue.

Prevention Tips to Avoid Future Problems

Regular Maintenance Schedule:

– Clean the fire pot after every 3-5 uses

– Deep clean the combustion fan monthly

– Check and tighten electrical connections seasonally

– Store pellets in a dry, sealed container

– Use a grill cover to protect from moisture and debris

When to Call for Professional Help

Contact customer service or a qualified technician if:

– You’re uncomfortable working with electrical components

– The problem persists after trying all troubleshooting steps

– Your grill is still under warranty (DIY repairs might void coverage)

– You discover significant electrical damage

Conclusion

A pellet grill that won’t stop feeding pellets is usually suffering from temperature sensor issues, control board problems, or airflow restrictions. By systematically checking each component and following proper troubleshooting procedures, you can identify and fix most issues yourself.

Remember that regular maintenance prevents most feeding problems. Keep your grill clean, use quality pellets, and protect it from the elements. With proper care, your pellet grill will provide years of reliable, delicious cooking.

If these solutions don’t resolve your issue, don’t hesitate to contact your manufacturer’s customer service team. Most reputable brands offer excellent support and may provide replacement parts under warranty.