New traeger pellets, clean grill, clean fire pot, fans working, auger turning at proper speed, temp probe functioning properly, Smoke stack wide open. But when I turn the grill to high it maxes out at around 350 degrees.. LEr - Low Temperature Error; HEr - High Temperature Error; ERR; ER1; ER2;. Why does my Traeger's temperature swing so much? A: The Traeger's cooking temperature may swing from one of the following reasons: RTD temperature sensor is dirty; Grill is uninsulated during a cold or windy day;
Steps. To clear your Traeger grill's High Temp Error, please take the steps below: Safety First! If there's an active fire, proceed with caution.. Alert: Preheat Complete. What to do if you get a Preheat Complete alert before your grill has reached the set temperature..