This article contains the Troubleshooting Guide for the AG300/AG400 Series Ninja® Foodi™ 5-in-1 Indoor Grill. This supports the following product SKUs AG300, AG300C, AG301, AG301C, AG302, AG400, AG301BRN, AG302BRN, AG305BBYC, AG302H, AG302HAQ, AG302HBK, AG302HNV, AG302HRD, AG302HWH, LG451BK, LG450CO, and LG450CCO.