A HEr error stands for “High Error Reading.'” This usually happens when the grill reaches over 550 degrees and shuts itself off. To understand why let's run through a few scenarios that could have caused this error.
Proper cleaning and maintenance of your grill are vital to a successful cook, and excessive ash and grease can very easily affect your grill's ability to read temperature accurately. Please review Grill maintenance for additional details on cleaning instructions.
A HEr will happen during a grill fire as the temperature rises above 550. This is normal and to be expected during a grill fire.
The correct process for starting your grill will vary depending on your model. Please visit the Start-Up Guide to find your proper start-up procedure.
If the grill was not put through the shut down cycle on your previous cook, there might be additional pellets in the firepot from your last cook, which can cause the temp to spike.
If you received a LEr (Low Error Reading) message during your previous cook, and this is your first time starting your grill since then, you might get a HEr message. This can happen as the grill tries to burn off any additional pellets built up during the last cook.
HEr messages can occur when the insides of the grill are not in place (drip tray, heat baffle, grill grates).
Ensure the grill is reading the temperature accurately. To check this, follow the steps below.
Check for Damage
Verify that your RTD temperature sensor is not damaged.
The best way to test your thermocouple is by comparing the ambient temperature of the grill to the external temperature. With the grill cooled down, complete the following: