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ErrBase

Traeger Low Temp Error: Why Temperature Drops and How to Fix

Quick Answer

Traeger Low Temp Error (LEr on WiFIRE models) means the grill temperature dropped below the safe cooking threshold. Clean the firepot first (50% of cases) - ash buildup insulates the fire and reduces heat output. Check the pellet hopper is not empty. Also check ambient temperature: in cold weather (below 35F), use the Traeger insulation blanket and preheat longer.

Traeger Low Temp Error is the same as LEr displayed as text on newer WiFIRE models. The causes and fixes are identical to LEr: clean the firepot (50% of cases), check pellet supply (25%), and address cold weather conditions (15%). On Traeger's WiFIRE app, the Low Temp Error notification may include additional data: the temperature at which the error triggered and how long the grill was below threshold. This information helps determine whether the issue is gradual (pellets running out) or sudden (fire went out from ash blockage). A gradual decline means pellet supply. A sudden drop means the fire was extinguished by ash, wind, or damp pellets.

TraegerPelletgrillSeverity: medium80% DIY Success
Time to Fix
10–60 min
Difficulty
beginner
Parts Cost
$20 – $80
Tools Needed
Shop vacuum (for firepot cleaning), Flashlight

What Does the LOW-TEMP Code Mean?

Low Temp Error = same as LEr (text version on newer WiFIRE displays). Clean firepot (50% fix), check pellets (25%), use insulation blanket in cold weather (15%).

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Component failure in the Traeger pelletgrill40%
Sensor or thermostat out of operating range24%
Control board fault14%
Power or electrical supply issue12%
Mechanical wear requiring inspection10%

Symptoms You May Notice

  • Low Temp Error on display or app
  • Temperature dropping during cook
  • Grill shutdown
  • Smoke stopped
  • WiFIRE app notification

Can you reset a Traeger pelletgrill to clear the LOW-TEMP code?

Turn the grill off. Unplug for 30 seconds. Plug back in. Set to shutdown cycle to clear the firepot. Then restart.

Tools Required for Diagnosis

Shop vacuum (for firepot cleaning)FlashlightMultimeter

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Same fix as LEr

Same fix as LEr: clean firepot, check pellets, check for cold/wind.

2

If firepot and pellets are fine

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 Hot Rod IgniterKIT0019 · $20–$35
Traeger Insulation BlanketModel-specific · $50–$80

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $50 (Parts) vs $1150 (New Machine)

Frequently Asked Questions

Is Low Temp Error the same as LEr?
Yes, identical. Newer Traeger WiFIRE models display 'Low Temp Error' as text instead of the abbreviated 'LEr' code. Same causes, same fixes.
Why did I get Low Temp Error but my hopper is full?
If pellets are plentiful, the issue is either a dirty firepot (ash blocking the fire), a jammed auger (pellets not reaching the firepot), or a failed igniter (pellets reaching but not lighting). Check in that order.
Can I prevent Low Temp Error?
Three habits prevent 90% of Low Temp Errors: 1) Vacuum the firepot before every cook. 2) Store pellets in a sealed container to keep them dry. 3) Use an insulation blanket in cold weather.

Related Traeger Pelletgrill Error Codes

Code: LErTraeger LEr: Low Temperature Error (same code)Code: HUBTraeger Error Codes

Models Known to Experience LOW-TEMP 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

Last verified for technical accuracy on March 15, 2026