What's in This Article?

Understand what an RTD is and how it works. 

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Err, Er1 & Er2 Error Codes


What Is an RTD?

An RTD is the temperature sensor used in Traeger's AC (non-connected) grills; it is an acronym for Resistance Temperature Detector.

RTDs come in two sizes: 2" and 7", and sit vertically inside the grill. The RTD is located inside the grill barrel, on the left side near the hopper.

7" RTD 2" RTD
rtd-7_in_probe.png rtd-2_in_probe.png


  • BAC194 - 7" probe
  • KIT0779 - 7" probe
  • KIT0225 - 2" probe
  • KIT0373 - 2" probe

Junior & Tailgater RTD

Because Junior and Tailgater grills are shipped with the HBA inside of the barrel, the RTD actually comes in two pieces that connect when assembling the grill.

RTD install - junior tailgater.jpgTwo-Piece RTD.png 

Normal RTD Behavior

When working as designed, the RTD measures the temperature inside the grill.


Cleaning an RTD

RTD's are sensitive parts and should generally be avoided when cleaning. If the RTD has a noticeable build-up of grease, gently clean it using an all natural degreaser.


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