The grill may display error 0031 and cook less efficiently if the flame sensor is disconnected. This can happen because of firmware problems, strong wind, poor connections, wiring damage, or a faulty sensor. To address this, try updating the firmware, avoid using the grill in strong winds, run diagnostics, check and reconnect any wiring, and replace any damaged parts. For grills made before June 2023, use a manual impact driver to remove the service panel; for newer models, you can proceed as usual. If the issue continues, please reach out to Customer Support for assistance.
What Does the Grill Do when this Message Occurs?
- Grill continues to cook but with reduced performance
- Error 0031 appears on the controller display
- May occur intermittently or during windy conditions
Causes
The grill has detected that the flame sensor is not connected. This could be caused by any of the following factors:
- Old firmware, incorrect config version, or incorrect Device Type
- Strong wind blowing directly into the downdraft exhaust
- Bad connection between the flame sensor, Smart Combustion harness, and Motherboard
- Wiring damage to Flame Sensor Wire Harness or Smart Combustion Wire Harness
- Failed flame sensor.
What to Do
- Make sure your grill's firmware is up to date.
- Check your grill's firmware in your grill settings in the app or on your controller by going to Menu > Settings > About Grill.
- Was there strong wind when the error triggered?
This error can trigger when winds stronger than 30 mph are blowing into the downdraft exhaust for longer than 10 minutes.- If so, the error should clear once restarted. Position the grill so the exhaust is facing toward a wall or at least so the wind is not blowing directly into the downdraft exhaust.
- Run SELF-TEST and Part Diagnosis to check if all components are responding to the motherboard and if any parts are triggering other errors
Before removing the hopper service panel: check your grill’s manufacturer date.
- June 2023 (2306) or after: Proceed to remove service panel.
- Before June 2023 (2305): Remove the access panel using an impact driver to prevent the possibility of stripped screws. If you don't have one on-hand, contact Traeger Support.
Once you've verified current firmware and have the hopper service panel removed:
- Turn off and unplug your grill.
- Confirm all connections are fully connected to the motherboard.
- Remove the Smart Combustion cover.
- Disconnect and reconnect all connectors.
- Confirm wiring is not pinched, cut damaged inside the hopper.
- If any wires are pinched or damaged, contact Customer Support so we can replace those wire harnesses.
- Turn on your grill to see if the issue resolved.
- If the error continues, turn off the grill and move to checking wiring underneath the grill.
- With the grill off and unplugged open the cabinet door.
- Remove the grease and ash keg.
- Under the grease and ash keg opening there will be a plate held in by 2 screws. On some models the smart combustion wire harness is secured by a zip tie.
- Remove this plate to expose the smart combustion wire. Cut the zip tie to release the Wire and check for damages.
- If smart combustion wire harness is damaged, reach out to Customer Service.
- If no damage is seen, or there is no access plate, take the next step to check hot rod service panel.
- Underneath the grill to the right of the Grease/Ash Keg, you will find the hot rod service panel.
- Remove 4 screws holding the hot rod service panel in place.
- The hot rod service panel will drop down and allow access to the Hot rod.
- Disconnect and reconnect the flame sensor wire connection.
- Reattach the hot rod service panel.
- Turn on the grill. If the Flame Sensor Disconnected error still remains, contact our Customer Support team and we'll get you set up with a new hot rod service panel.
If you received a replacement Ignitor & Flame Sensor Assembly, verify that the AC ignitor wire was also replaced and connected correctly.
- Ensure the QR code sticker was removed prior to installing.