Traeger error code ler

Grilling is a passion for many, and technology has revolutionized how we do it. The Traeger pellet grill is a perfect example of modern grilling technology. However, with technology comes occasional glitches. One such error that many Traeger users come across is the dreaded “LER” error code. In this comprehensive guide, we will explore the reasons behind the Traeger error code LER and provide step-by-step solutions.

Traeger error code ler

Why does the LEr Error Occur?

  1. Empty Pellet Hopper: The most common reason is an empty pellet hopper. If the grill runs out of pellets, it cannot maintain its temperature.
  2. Faulty RTD Temperature Probe: The probe measures the grill’s temperature. If it’s damaged or covered in grime, it may not function correctly.
  3. Blocked Fire Pot: Over time, ash can accumulate and block the fire pot, preventing the grill from maintaining temperature.
  4. Ambient Conditions: Extremely cold or windy conditions can affect the grill’s ability to keep its temperature stable.

How to Fix the Traeger Error Code LER?

There are several solutions to fix this issue below:

Fix 1: Refill the Pellet Hopper

Your Traeger grill’s pellet hopper is its fuel source. When the hopper runs low or completely out of pellets, the grill cannot maintain its temperature, triggering the LER error. Here’s a detailed guide on how to properly refill your pellet hopper and ensure optimal grilling performance.

  • Step 1: Ensure Safety First: Before working on your grill, always turn it off and ensure it’s cool to the touch. This minimizes the risk of burns or other accidents.
  • Step 2: Check the Pellet Level: Open the lid of the pellet hopper and visually inspect the level of pellets. If the level is significantly low or empty, it’s a clear indication that the grill ran out of fuel.
  • Step 3: Clear Out Any Dust or Debris: Over time, wood pellets can break down into sawdust. This sawdust can accumulate at the bottom of the hopper and potentially cause jams. Use a vacuum or hand to gently remove any dust or small debris.
  • Step 4: Refill with Quality Pellets: Pour fresh, high-quality pellets into the hopper. It’s essential to use good quality pellets as they burn more efficiently and reduce the chances of future errors. Fill the hopper to its recommended capacity but avoid overfilling.
  • Step 5: Check the Auger: The auger is responsible for feeding pellets into the grill. Make sure there’s no blockage or jam. If you find any obstructions, clear them carefully. A smooth pellet flow is crucial for maintaining temperature consistency.
  • Step 6: Restart Your Grill: Once you’ve refilled the hopper and ensured everything looks good, close the lid. Turn on your Traeger grill and set it to the desired temperature. The grill should now work without displaying the LER error.
  • Step 7: Monitor the First Few Minutes: After restarting, keep an eye on the grill for the first few minutes. Ensure that the temperature is rising steadily and that there are no unusual sounds. A consistent rise in temperature indicates that the pellets are feeding correctly, and the issue is resolved.

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Fix 2: Clean the RTD Temperature Probe

The RTD (Resistance Temperature Detector) probe is a critical component of your Traeger grill, responsible for accurately measuring the grill’s internal temperature. If the probe becomes dirty or is coated in grease and grime, it can give inaccurate readings, leading to the LER error. Below, we’ve outlined the steps to clean the RTD temperature probe properly.

  • Step 1: Safety Comes First: Always ensure your grill is turned off and has cooled down completely. Handling or cleaning parts of a hot grill can be dangerous.
  • Step 2: Locate the RTD Probe: Open your grill and locate the RTD probe. It’s typically found on the inside wall of the grill barrel, looking like a small metal rod sticking out.
  • Step 3: Inspect for Visible Grime: Before cleaning, inspect the probe. If it’s coated in heavy grime or grease, this could very well be the cause of the LER error.
  • Step 4: Gently Clean the Probe: Using a soft cloth or sponge dampened with warm water, gently wipe the RTD probe. Avoid using abrasive tools or scrubbers as they can damage the probe.
  • Step 5: Dry the Probe: After cleaning, it’s essential to dry the RTD probe thoroughly using a soft towel. Moisture can affect the probe’s accuracy.
  • Step 6: Ensure Secure Connections: Sometimes, the error can be due to a loose connection. Check if the probe’s wires are securely connected to the grill’s controller. If you find any loose wires, reconnect them securely.
  • Step 7: Restart and Test: Once the RTD probe is clean and dry, restart your Traeger grill. Monitor the temperature readings to see if they’re consistent and the LER error doesn’t reappear.
  • Step 8: Regular Maintenance: To prevent future errors, make it a habit to regularly inspect and clean the RTD probe. A clean probe ensures accurate temperature readings, leading to perfect grilling sessions.
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Fix 3: Clear the Fire Pot

The fire pot in your Traeger grill is where the magic happens. It’s where the pellets combust, generating the heat for your grill. Over time, ash and unburned pellets can accumulate in the fire pot, hindering its efficiency and possibly leading to the LER error. Here’s how to clear it out properly:

  • Step 1: Safety First: Always disconnect the grill from the power source and make sure it has cooled down entirely before attempting any maintenance.
  • Step 2: Remove the Grates and Heat Deflector: Take out the grilling grates from your grill. Next, remove the grease tray or heat deflector, giving you access to the fire pot below.
  • Step 3: Examine the Fire Pot: Look for any buildup of ash or remnants of unburned pellets in the fire pot. If it looks clogged or there’s noticeable accumulation, it needs cleaning.
  • Step 4: Vacuum Out the Ash: Using a hand-held vacuum, carefully vacuum out the ash and debris from the fire pot. Make sure you remove as much as possible for optimal functioning.
  • Step 5: Check the Igniter: The igniter rod, situated in the fire pot, lights the pellets. Ensure it’s free from debris and is intact. If it looks worn out or damaged, consider replacing it.
  • Step 6: Reassemble the Grill: Once the fire pot is clean, replace the heat deflector and grilling grates. Ensure everything fits snugly in its place.
  • Step 7: Test the Grill: Power up your Traeger grill and monitor its performance. If the LER error doesn’t pop up and the grill heats consistently, you’ve successfully resolved the issue.

Fix 4: Shelter Your Grill from Extreme Conditions

Environmental factors can sometimes interfere with your grill’s performance. Extreme cold, rain, or strong winds can affect its ability to maintain a consistent temperature, leading to the LER error. Here’s how to mitigate these factors:

  • Step 1: Analyze Your Grill’s Location: Determine if your grill is located in a spot that’s exposed to strong winds, or if it’s in an area that gets exceptionally cold.
  • Step 2: Consider a Windbreak: If winds are the culprit, setting up a temporary windbreak can make a difference. Use a large board, tarp, or other barriers to shield the grill from direct wind.
  • Step 3: Insulate Your Grill: In cold climates, consider using a thermal blanket designed for grills. This blanket can help retain heat, allowing the grill to maintain its temperature more efficiently.
  • Step 4: Use a Grill Shelter: If you grill frequently, investing in a grill shelter or gazebo can provide protection from rain and snow. Ensure the shelter has adequate ventilation to allow smoke to escape.
  • Step 5: Avoid Grilling in Extreme Conditions: While it might be tempting, try to avoid grilling during severe weather conditions. Waiting for better weather can prevent issues and ensure a better grilling experience.
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Fix 5: Ensure Proper Airflow

A Traeger grill, like other pellet grills, relies on proper airflow to maintain temperature. Restricted airflow can cause the pellets not to burn efficiently, leading to the LER error. Here’s how to ensure proper airflow:

  1. Step 1: Inspect the Grill’s Vents: Both the intake and exhaust vents should be free from obstructions. Check for any blockages like grease buildup, ash, or debris.
  2. Step 2: Clean the Vents: Using a soft brush, gently clean the vents to remove any obstructions. Ensure that the vents can open and close smoothly.
  3. Step 3: Check the Grill’s Chimney: The chimney or smokestack helps regulate airflow. Ensure it’s not blocked by debris or grease.
  4. Step 4: Clean the Grease Trap: Over time, the grease trap can fill up and hinder airflow. Regularly emptying and cleaning it can ensure that air circulates without obstruction.
  5. Step 5: Test the Grill: Once you’ve ensured proper airflow, power up your grill. If the grill heats up consistently without showing the LER error, you’ve resolved the problem.

Fix 6: Update Your Grill’s Firmware

Sometimes, the cause of the LER error can be software-related. Traeger occasionally releases firmware updates that address known issues, improve performance, and add new features.

Step 1: Check for Updates: Visit Traeger’s official website or refer to your grill’s user manual on how to check for firmware updates. Some models may have an automatic update feature in their settings.

  • Step 2: Connect to Wi-Fi: Ensure your grill is connected to a strong Wi-Fi signal. Most updates are delivered over the internet.
  • Step 3: Download and Install: If an update is available, download and install it. Ensure that the grill remains powered on and connected to Wi-Fi throughout the process.
  • Step 4: Restart Your Grill: Once the update is installed, it’s a good practice to restart your grill. This ensures that all new features or fixes are integrated correctly.
  • Step 5: Monitor Grill Performance: After updating, keep an eye on your grill for a few sessions. The LER error should no longer appear, and you might notice improved performance or additional features.

Fix 7: Examine and Replace the Hot Rod

The hot rod in your Traeger grill is essential for igniting the pellets. If it’s malfunctioning, this can lead to uneven temperatures and, eventually, the LER error. Here’s how to check and replace it:

  • Step 1: Safety Precautions: Before examining any component, ensure your grill is unplugged and has cooled down completely.
  • Step 2: Access the Hot Rod: Remove the grill grates, grease tray, and heat deflector to expose the fire pot. The hot rod extends into the fire pot and is what ignites the pellets.
  • Step 3: Inspect the Hot Rod: Check the hot rod for any signs of wear, corrosion, or damage. If the tip appears heavily corroded or the rod looks warped, it might need replacement.
  • Step 4: Replace if Necessary: If the hot rod seems defective, purchase a replacement part from Traeger or a trusted supplier. Follow the grill’s manual for guidance on replacing the rod, ensuring you connect it correctly.
  • Step 5: Test the Grill: After replacement, reassemble your grill and power it up. With a new hot rod, your grill should ignite the pellets more efficiently, reducing the chances of the LER error.
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Fix 8: Reset the Grill’s Controller

At times, like other electronic devices, your grill’s controller might need a reset to function correctly. This can help clear any minor glitches causing the LER error.

  • Step 1: Power Down: Turn off your Traeger grill and unplug it from its power source.
  • Step 2: Wait: Leave the grill unplugged for about 10 minutes. This ensures any residual power dissipates and gives the controller time to reset.
  • Step 3: Reconnect: After waiting, plug the grill back into its power source.
  • Step 4: Power Up and Observe: Turn on the grill and set your desired temperature. Monitor the grill to see if the LER error persists.
  • Step 5: Seek Technical Support: If the LER error continues even after a reset, it might indicate a more significant issue with the controller. In such cases, it’s wise to contact Traeger’s customer support or consult a professional.


The Traeger error code LER can be a cause of concern for grill enthusiasts. But understanding the reasons behind it and following our detailed solutions can ensure uninterrupted grilling sessions. Remember, regular maintenance and using quality pellets are key. So, the next time you’re firing up your Traeger, keep these tips in mind and enjoy a hassle-free grilling experience.


What does the LER error on my Traeger grill mean?

LER stands for “Low-temperature Error.” It indicates your grill struggled to reach or maintain the desired temperature.

How does the LER error affect my grilling?

It means uneven cooking. Your food might be undercooked, over-smoked, or lack the desired flavor.

Is the LER error common in all Traeger models?

Most Traeger models can experience it, but regular maintenance and proper usage can prevent its occurrence.