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, AG300BF, AG300C, AG301, AG301BRN, AG301C, AG302, AG302BRN, AG302H, AG302HAH, AG302HBK, AG302HCM, AG302HNV, AG302HRD, AG302HWH, AG302Q, AG302QAQ, AG302QBK, AG302QCM, AG302QNV, AG302QRD, AG302QWH, AG400, LG450CCO, LG450CO and LG451BK.