Troubleshooting by Remote Controller SiUS39-601118 TroubleshootingMalfunction code indication by outdoor unit PCBTo enter the monitor mode, push theMODE button (BS1) when in“Setting mode 1”.Push the SET button (BS2) and setthe LED display to a setting item.Push the RETURN button (BS3)once to display "First digit" ofmalfunction code.Push the SET button (BS2) once todisplay "Second digit" of malfunctioncode.Push the RETURN button (BS3) andswitches to the initial status of“Monitor mode”.∗ Push the MODE button (BS1) andreturns to “Setting mode 1”.Contents of malfunction MalfunctioncodeHPS activatedAbnormal PeDetection of INV compressor lockDetection of STD1 compressor lockDetection of STD2 compressor lockInstantaneous over current of DC fan motorDetection of DC fan motor lockEV1EV2EV3Abnormal position signal of DC fan motorFaulty Ta sensorAbnormal TdRefrigerant over chargeFaulty CT1 sensorFaulty CT2 sensorFaulty Tdi sensorFaulty Tds1 sensorFaulty Tds2 sensorFaulty Ts sensorFaulty Tb sensorFaulty Tl sensorFaulty To sensorFaulty Tsh sensorFaulty Pc sensorFaulty Pe sensorOver heating of inverter radiation fin temperatureInverter instantaneous over currentElectronic thermal switch 1Electronic thermal switch 2Out-of-stepSpeed down after startupLightening detectionStall prevention (Current increasing)Stall prevention (Faulty startup)Abnormal wave form in startupOut-of-stepInverter transmission errorImbalance of inverter power supply voltageFaulty thermistor of inverter boxFaulty thermistor of inverter finFaulty field setting or faulty conbination of PC boardGas shortage alarmReverse phase errorInsufficient inverter voltageInverter open phase (phase T)Charging error of capacitor in inverter main circuitI/O transmission errorO/O transmission errorIndoor unit system malfunction in other system orother unit of own systemAbnormal connection with excessive number of indoor unitsConflict of refrigerant type in indoor unitsIncorrect wiring (Auto address error)Malfunction of multi level converter, abnormality inconflict checkE3E4E5E6E7E9H7H9HCHJHFF3F6J2J3J5J6J7J8J9JAJCL4L5L8L9LCP1P3P4PJU0U1U2U3U4U7U9UAUHUJUFAbnormal discharge pressureAbnormal suction pressureCompressor lockActivation of OCOver load, over current,abnormal lock of outdoor unit fan motorMalfunction of electronic expansion valveAbnormal position signal of outdoor unit fan motorFaulty sensor of outdoor air temperatureFaulty sensor of heat storage unitAbnormality in water system of heat storage unitTransmission error between heat storage unit and controllerAbnormal discharge pipe temperatureAbnormal heat exchanger temperatureFaulty current sensorFaulty sensor of discharge pipe temperatureFaulty sensor of suction pipe temperatureFaulty sensor of heat exchanger temperatureFaulty sensor of receiver temperatureFaulty sensor of oil pressure equalizing pipe temperatureFaulty sensor of subcool heat exchanger temperatureFaulty sensor of discharge pressureFaulty sensor of suction pressureInverter radiation fin temperature risingDC output over currentElectronic thermal switchStall prevention (Limit time)Transmission error between inverter and outdoor unitOpen phase/Power supply imbalanceFaulty temperature sensor inside switch boxFaulty temperature sensor of inverter radiation finIncorrect combination of inverter and fan driverGas shortageReverse phaseAbnormal power supply voltageNo implementation of test-runTransmission error between indoor and outdoor unitTransmission error between outdoor units, transmission errorbetween thermal storage units, duplication of IC addressTransmission error of other systemErroneous on-site settingFaulty system functionTransmission error in accessory devices, conflictin wiring and piping, no setting for systemPush the SET button (BS2) once todisplay "master or slave1 or slave2"and "malfunction location".Detaildescriptionon nextpage.
