A blinking light on the AC button indicates that at the current load, the AC inverter will be shutting off soon. Recharge your Goal Zero Yeti as soon as possible to continue powering your device. Once the AC inverter has shut off, the Yeti will attempt to reset itself three times. After three attempts, the AC inverter will remain off until you physically reset it by pushing the AC button or by recharging the battery a small amount.