ESIE16-02B | Part 2. Troubleshooting 2.1. Error codes checkPage 18 4/04/17 | Version 1.1RA R32 Split & multi split M-Series2.1.2. Error codes via outdoor unit PCB2.1.2.1. How to retrieve error codesTroubleshooting via the service display.Note 1: Turn the power off and on againFigure 2-1: Service display location2.1.2.2. How to reset error codes1. When the problem is solved, perform a power resetGREEN RED GREEN FLASHING: NORMAL w ON c FLASHINGMICRO-COMPUTERNORMALLED-AMALFUNCTION DETECTION RED OFF: NORMAL x OFF — ANY STATUS* MAY NOT BE APPLICABLE DEPENDING ON THE MODELLED1LED2LED3LED4LED5 DIAGNOSISc x x x x x normal -> check indoor unitc w x w w x high pressure protector activated or freeze-up in operating unit, or stand-by unitc w x w x x overload relay activated or high discharge pipe temperaturec x w w x x faulty compressor startc x w x w x input overcurrentc w w x x x thermistor or ct abnormalityc w w x w x high temperature switchboxc x x x w x high temperature at inverter circuit heatsinkc x x w x x output overcurrentc x x w w x refrigerant shortagec w x x w x low voltage to main circuit or over voltage to main circuitc w x x x x reversing solenoid valve switching failure. * or high pressure switching failurec w w w x x faulty outdoor unit pcbc w w w w x fan motor faultc x w x x x wiring error check unfinishedw — — — — — (Note 1)c — — — — — power supply fault1. Service monitor LEDs1
