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Traeger Pellet Grill Error Codes: LEr, HEr, Low Temp, Error 1 Complete Guide

Quick Answer

Traeger pellet grills with WiFIRE or D2 controllers display error codes on the LCD screen. LEr (Low Temperature Error) is the most common - it means the grill temperature dropped 125F+ below the set temperature for more than 10 minutes.

Traeger pellet grills with WiFIRE or D2 controllers display error codes on the LCD screen. LEr (Low Temperature Error) is the most common - it means the grill temperature dropped 125F+ below the set temperature for more than 10 minutes. This is usually caused by running out of pellets, a jammed auger, or cold/windy conditions. HEr (High Temperature Error) means the grill exceeded the set temperature by 125F+ - usually a grease fire in the firepot or a stuck-open damper. Er1 and Er2 indicate temperature probe faults (RTD sensor). Er40 is a firepot ignition failure. The most important Traeger troubleshooting step: always start with cleaning the firepot. Ash buildup in the firepot prevents proper ignition and airflow, causing both LEr and HEr errors.

TraegerPelletgrill

About These Traeger Pelletgrill Error Codes

Traeger codes: LEr = low temp (most common, clean firepot), HEr = high temp (grease fire risk), Er1/Er2 = probe fault, Er40 = ignition failure. Clean the firepot first for any error.

Most Common Error Codes

Firepot full of ash (most common cause of LEr)40%
Pellet hopper empty or jammed auger24%
Grease fire in drip tray (HEr)14%
Igniter rod burned out12%
RTD temperature probe damaged10%

Symptoms You May Notice

  • Error code on LCD display
  • Grill stopped maintaining temperature
  • Grill shut down mid-cook
  • Temperature swinging wildly
  • Grill will not ignite

Tools Required for Diagnosis

Shop vacuum (for firepot cleaning)FlashlightMultimeter

How to Identify Your Error Code

1

Turn off the grill and let it cool

Turn off the grill and let it cool. Remove the grates, drip tray, and heat baffle to access the firepot. Use a shop vacuum to clean all ash from the firepot. This single step fixes the majority of Traeger errors.

2

Check the pellet hopper

3

For specific codes

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Traeger RTD Temperature ProbeBAC194 · $15–$25
Traeger Hot Rod IgniterKIT0019 · $20–$35
Traeger Auger MotorKIT0020 · $30–$50

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $33 (Parts) vs $1150 (New Machine)

Frequently Asked Questions

What is the most common Traeger error?
LEr (Low Temperature Error) is by far the most common. It means the grill dropped 125F+ below the set temperature. The fix is almost always cleaning the firepot with a shop vac - ash buildup prevents proper combustion.
How often should I clean my Traeger firepot?
Clean the firepot before every cook, or at minimum every 3-4 cooks. Use a shop vac to remove all ash. This prevents LEr errors, improves ignition, and ensures consistent temperature.
Can I use my Traeger in cold weather without errors?
Yes, but use an insulation blanket (Traeger sells them for each model). In temperatures below 35F, the grill loses heat faster than normal, which can trigger LEr. The insulation blanket and using the Super Smoke setting help compensate.

Related Traeger Pelletgrill Error Codes

Code: LErTraeger LEr: Low Temperature ErrorCode: HErTraeger HEr: High Temperature ErrorCode: Er1Traeger Error 1: Probe Fault

Models Known to Experience HUB Errors

This repair applies to most Traeger pelletgrills with this error code. Common model numbers include:

Pro 575, Pro 780, Ironwood 650, Ironwood 885, Timberline 850, Timberline 1300, Silverton 620

Last verified for technical accuracy on March 15, 2026