Daitsu AC Error Codes | Troubleshooting   Digital LED Code Failure Type-LED Code-Function Indicator (flash) E0 Indoor and outdoor communication failure. Runn, timer – both eyelids. EC outdoor communication failure. Runner Timer – Both blinked. E1 Indoor room temperature sensor (IRT). RUN-1 time / 8s. E2 Indoor Coil Temperature Sensor (IPT). RUN-2 bar / 8