The Cinder Grill communicates in a couple of ways, including via the colors of the light-up ring around the control knob.
Here are the different colors the light-up ring can display and their meanings:
Off: Idle mode (the Cinder Grill is not currently performing any task)
Solid blue: Cooking under manual control.
Flashing blue: Cooking under remote control via the App.
Yellow: Calibrating the device
Green: Calibration done
Red: Searing mode or error signal.
If the light-up ring turns red it means either that the Cinder is in searing mode or that the Cinder Grill is having an issue. Please check the message displayed on the LCD screen for clarification if necessary If troubleshooting according to the advice listed here doesn't resolve the issue, please follow these steps:
1) Document the issue. The cooking temperature when the issue happened, whether the Cinder was under manual control or the App, the model of phone used, and any other pertinent details.
2) Contact us at help@cindergrill.com for assistance.