Error Codes: Outdoor Units ESIE05-033–84 Part 3 – Troubleshooting313453.17 Stall Prevention (Time Lag) (L9)Remote ControllerDisplayL9Method ofMalfunctionDetectionMalfunction is detected by converting the current flowing to power transistor into voltage with CT1 (DCcurrent sensor).Inverter PC board detects the disorder of position signal.MalfunctionDecisionConditionsWhen compressor overload (except for when startup) is detectedWhen position signal is disorderedSupposed Causes P Faulty compressor (lock)P Pressure differential startupP Faulty inverterP The stop valve is left in closed.